2346 Commits

Author SHA1 Message Date
Jiayang Liu
12e0329007 Do not use Magnifier if there are multiple screens since it sometimes crashes.
BUG=crbug/478825
R=sergeyu@chromium.org

Review URL: https://webrtc-codereview.appspot.com/43289004

Cr-Commit-Position: refs/heads/master@{#9082}
2015-04-24 15:46:15 +00:00
Henrik Kjellander
f955b5d3f5 Add h.264 AVC SPS parsing for resolution (re-land)
Re-land of noharic@'s CL at  https://webrtc-codereview.appspot.com/48129004
which was reverted due to a Mac compile error which most
likely was a Goma flake (it passed on all trybots).

TBR=stefan@webrtc.org, noharic@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/44329005

Cr-Commit-Position: refs/heads/master@{#9079}
2015-04-24 11:56:44 +00:00
Peter Boström
c043afc605 Cleanup inside IncomingVideoStream.
Removes logging, thread annotates members (finding 2 bugs where
variables were not protected by the correct critsect) and adds consts
and scoped_ptrs.

BUG=
R=mflodman@webrtc.org, stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/43219004

Cr-Commit-Position: refs/heads/master@{#9078}
2015-04-24 11:54:05 +00:00
Åsa Persson
a96f02b6f3 Make sure histograms in jitter buffer are only updated if running.
BUG=
R=pbos@webrtc.org, stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/46089004

Cr-Commit-Position: refs/heads/master@{#9076}
2015-04-24 06:51:52 +00:00
Noah Richards
e3827f27c3 Revert "Add h.264 AVC SPS parsing for resolution."
The Mac64 Debug builder is broken for an unknown failure (trybot is
green, no failure obvious in the commit break). Reverting this CL to see
if it goes green again, and then relanding to see if it is just some
weird flaky build issue.

This reverts commit 5ea8eff55ec21a1d81aaf7d29c0106fe13256150.

BUG=
TBR=rollback

Review URL: https://webrtc-codereview.appspot.com/47019004

Cr-Commit-Position: refs/heads/master@{#9074}
2015-04-24 01:14:56 +00:00
Noah Richards
5ea8eff55e Add h.264 AVC SPS parsing for resolution.
BUG=
R=stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/48129004

Cr-Commit-Position: refs/heads/master@{#9073}
2015-04-23 23:48:42 +00:00
Noah Richards
9728241e6a Record H264 NALU type in the h264 header.
BUG=
R=niklas.enbom@webrtc.org, stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/48999004

Cr-Commit-Position: refs/heads/master@{#9072}
2015-04-23 18:14:46 +00:00
Peter Boström
fe7a80c38c Prevent sender RTCP signals for receive-only channels.
Since RTCP packets are delivered to both senders and receivers that
correspond the receivers currently log that NACKed packets are missing,
since they have no direct connection to the sending side or the RTP
packet history. Also preventing triggering on SR requests and PLI/FIR.

BUG=
R=asapersson@webrtc.org, stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/45249004

Cr-Commit-Position: refs/heads/master@{#9071}
2015-04-23 15:52:58 +00:00
Karl Wiberg
d3e8eda839 (Re-land) AudioEncoderDecoderIsac: Merge the two config structs
This reverts commit 599beb86, which in turn reverted 7c324cac. What
makes it work this time is that we don't remove the option of setting
bit_rate to 0 in order to ask for the default value.

COAUTHOR=henrik.lundin@webrtc.org
BUG=4228, chromium:478161
R=henrik.lundin@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/48199004

Cr-Commit-Position: refs/heads/master@{#9068}
2015-04-23 12:06:46 +00:00
Karl Wiberg
92f9eacd13 g722 and red encoders: Use rtc::Buffer instead of scoped_ptr<uint8_t[]>
It's a win for red, and a toss-up for g722 since it never resizes its
buffer.

R=henrik.lundin@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/45219005

Cr-Commit-Position: refs/heads/master@{#9067}
2015-04-23 11:53:02 +00:00
Henrik Kjellander
352595459d Use short include paths for icu headers.
This makes it possible to build with icu located
in another absolute path.

BUG=4242
R=andresp@webrtc.org, tommi@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/46079004

Cr-Commit-Position: refs/heads/master@{#9063}
2015-04-23 06:58:02 +00:00
Ivo Creusen
5a3178042b Reformatting RTPtimeshift.cc file.
BUG=2692
R=henrik.lundin@webrtc.org, kwiberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/45239004

Cr-Commit-Position: refs/heads/master@{#9052}
2015-04-22 11:11:39 +00:00
Stefan Holmer
ac69016b0f Improve TCP by adding a real timeout to in flight packets.
Note that the timeout should depend on the smoothed RTT, but for now is hard coded to 1000 ms.

This solves issues where a full cwnd gets lost.

R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/51739004

Cr-Commit-Position: refs/heads/master@{#9051}
2015-04-22 11:11:28 +00:00
Bjorn Volcker
fb49451014 Disables mic bump-up level if not built with chromium
In http://chromegw.corp.google.com/viewvc/chrome-internal?view=rev&revision=61016 a feature to bump up low input audio levels to a fixed value of 33%. In https://webrtc-codereview.appspot.com/43109004/ a configuration to choose an arbitrary level was added, but still using 33% as default.
The original bump-up feature was added to fix audio issues in chrome, but affected also non-chrome users. This CL disables the feature for non-chrome applications.

Note that the default value is set to 0, but any value up to 12 will do. Zero was selected because it is more clear that the feature is turned off.

BUG=4529
R=andrew@webrtc.org, tommi@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/43259004

Cr-Commit-Position: refs/heads/master@{#9048}
2015-04-22 04:39:47 +00:00
Ljubomir Papuga
8f85dbcce4 Reduce the number of registers used in MIPS optimizations.
This change is needed by ChromeOS as it introduces -fno-omit-frame-pointer
flag (see code.google.com/p/chromium/issues/detail?id=477749). This causes
compile error for MIPS, as some MIPS optimization blocks use maximum possible
number of available registers.
Also, this change contains minor GN build fix for MIPS platform regarding the
pitch_filter_mips.c / pitch_filter_c.c file inclusion.

BUG=477749
R=andrew@webrtc.org, djordje.pesut@imgtec.com, tina.legrand@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/48139004

Patch from Ljubomir Papuga <lpapuga@mips.com>.

Cr-Commit-Position: refs/heads/master@{#9047}
2015-04-21 23:52:26 +00:00
jackychen
61b4d518af Dynamic resolution change for VP8 HW encode.
Off by default for now.

BUG=
R=glaznev@webrtc.org, stefan@webrtc.org
TBR=mflodman@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/45849004

Cr-Commit-Position: refs/heads/master@{#9045}
2015-04-21 22:29:53 +00:00
Peter Boström
5464a6e548 Remove VideoCodingModule::InitializeReceiver.
This code is no longer used to reset, so we can just initialize the
object in the constructor.

BUG=4391
R=stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/43249004

Cr-Commit-Position: refs/heads/master@{#9044}
2015-04-21 14:35:34 +00:00
Peter Boström
9dbbcfbcb5 Remove VideoCodingModule::InitializeSender.
This code is no longer used to reset, so we can just initialize the
object in the constructor.

BUG=4391
R=stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/51619005

Cr-Commit-Position: refs/heads/master@{#9043}
2015-04-21 13:54:56 +00:00
Stefan Holmer
95702246d7 Fix broken perf prints.
R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/51709004

Cr-Commit-Position: refs/heads/master@{#9042}
2015-04-21 13:44:01 +00:00
Stefan Holmer
5f92051f06 Fix bug in TCP implementation (simulations).
The problem was that only ACKed packets were subtracted from in_flight_, but lost packets were never removed, which caused TCP to stop sending eventually.

R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/43239004

Cr-Commit-Position: refs/heads/master@{#9041}
2015-04-21 12:48:07 +00:00
Shao Changbin
e62202fedf Support handling multiple RTX but only generate SDP with RTX associated with VP8.
This implementation registers RTX-APT map inside RTP sender and receiver.
While it only generates SDP with RTX associated with VP8 to make it
compatible with previous Chrome versions.

Should add following changes after reaches stable,
* Use RTX-APT map for building and restoring RTP packets.
* Add RTX support for RED or VP9 in Video engine.
* Set RTX payload type for RED inside FecConfig in EndToEndTest.

BUG=4024
R=mflodman@webrtc.org, pbos@webrtc.org, pthatcher@webrtc.org, stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/36889004

Cr-Commit-Position: refs/heads/master@{#9040}
2015-04-21 12:25:42 +00:00
Karl Wiberg
9478437fde rtc::Buffer improvements
1. Constructors, SetData(), and AppendData() now accept uint8_t*,
     int8_t*, and char*. Previously, they accepted void*, meaning that
     any kind of pointer was accepted. I think requiring an explicit
     cast in cases where the input array isn't already of a byte-sized
     type is a better compromise between convenience and safety.

  2. data() can now return a uint8_t* instead of a char*, which seems
     more appropriate for a byte array, and is harder to mix up with
     zero-terminated C strings. data<int8_t>() is also available so
     that callers that want that type instead won't have to cast, as
     is data<char>() (which remains the default until all existing
     callers have been fixed).

  3. Constructors, SetData(), and AppendData() now accept arrays
     natively, not just decayed to pointers. The advantage of this is
     that callers don't have to pass the size separately.

  4. There are new constructors that allow setting size and capacity
     without initializing the array. Previously, this had to be done
     separately after construction.

  5. Instead of TransferTo(), Buffer now supports swap(), and move
     construction and assignment, and has a Pass() method that works
     just like std::move(). (The Pass method is modeled after
     scoped_ptr::Pass().)

R=jmarusic@webrtc.org, tommi@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/42989004

Cr-Commit-Position: refs/heads/master@{#9033}
2015-04-20 12:03:00 +00:00
Ted Nakamura
599beb8687 Revert "AudioEncoderDecoderIsac: Merge the two config structs"
Reason for revert - breaks Hangouts

This reverts commit 7c324cac50ac38122b3f3b26455bc55ad834bfc0.

BUG=chromium:478161

Review URL: https://webrtc-codereview.appspot.com/43209004

Cr-Commit-Position: refs/heads/master@{#9030}
2015-04-17 21:13:59 +00:00
Stefan Holmer
a51e8f490c Fix some simulation issues.
Don't default to an infinite queue.
Make sure the computation of missing packets is correct.

R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/49059004

Cr-Commit-Position: refs/heads/master@{#9028}
2015-04-17 13:48:58 +00:00
Stefan Holmer
1d19893f3a Add TCP fairness test.
BUG=4548
R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/43199004

Cr-Commit-Position: refs/heads/master@{#9026}
2015-04-17 12:54:34 +00:00
Henrik Lundin
b0b54259c3 Let rtp_analyze parse absolute sender time
Also change to use virtual_packet_length_bytes in order to print the
actual packet size of the complete packet even when the RTP file only
contains RTP headers.

BUG=2692
R=tina.legrand@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/51559004

Cr-Commit-Position: refs/heads/master@{#9025}
2015-04-17 09:46:56 +00:00
Karl Wiberg
61c2a6f241 Remove rtc::Buffer::length(), since no one uses it anymore
Chromium now uses size() instead, just like WebRTC.

This CL also fixes a new length() call that had crept in.

R=tommi@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/44119004

Cr-Commit-Position: refs/heads/master@{#9024}
2015-04-16 19:48:52 +00:00
Stefan Holmer
d4e80146e3 Fix build errors in r9022 / 09bdc1e5f5a9.
Implicit casts detected by Win64 Release.

TBR=pbos@webrtc.org

BUG=4548

Review URL: https://webrtc-codereview.appspot.com/44239004

Cr-Commit-Position: refs/heads/master@{#9023}
2015-04-16 18:35:32 +00:00
Stefan Holmer
09bdc1e5f5 Add a BWE fairness test.
Also moves the BWE perf tests to webrtc_perf_tests for tracking.

BUG=4548
R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/45189004

Cr-Commit-Position: refs/heads/master@{#9022}
2015-04-16 18:20:26 +00:00
Stefan Holmer
3795937920 Adds a simplified Reno-type TCP sender.
BUG=4559
R=sprang@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/44189004

Cr-Commit-Position: refs/heads/master@{#9021}
2015-04-16 17:55:38 +00:00
Henrik Kjellander
f2497cf517 Fix unknown option '-msse2' warning
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/43169004

Cr-Commit-Position: refs/heads/master@{#9016}
2015-04-16 06:57:12 +00:00
Karl Wiberg
7c324cac50 AudioEncoderDecoderIsac: Merge the two config structs
This patch merges the Config and ConfigAdaptive structs, so that iSAC
has just one config struct like the other codecs. Future CLs will make
use of this.

COAUTHOR=henrik.lundin@webrtc.org
BUG=4228
R=tina.legrand@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/45979004

Cr-Commit-Position: refs/heads/master@{#9015}
2015-04-16 04:00:18 +00:00
Alejandro Luebs
5d22c006eb Add performance tests flag to audioproc_float
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/46039004

Cr-Commit-Position: refs/heads/master@{#9012}
2015-04-15 18:26:34 +00:00
Noah Richards
41ee1ea4fa Modified the simulcast encoder adapter to correctly handle encoded frames from sub encoders even if the encoder is unable to (temporarily or permanently) produce frames of the exactly matching resolution. This is done by using a different EncodedImageCallback for each encoder, which remembers which VideoEncoder it is registered to and forwards that on to SimulcastEncoderAdapter::Encoded.
BUG=
R=pbos@webrtc.org, stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/45949004

Cr-Commit-Position: refs/heads/master@{#9011}
2015-04-15 16:24:16 +00:00
Åsa Persson
352b2d7a19 Fix for sent/received RTCP packet counters returned by GetRtcpPacketTypeCounters. The returned counters are incorrect: sent_packets returns stats from a sent stream (and received_packets returns stats from a receive stream).
Add separate functions for returning stats from send/receive stream and updated how functions are used.

Add test implementation for histogram methods in system_wrappers/interface/metrics.h.

BUG=4519
R=pbos@webrtc.org, stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/49639004

Cr-Commit-Position: refs/heads/master@{#9009}
2015-04-15 16:00:37 +00:00
Bjorn Volcker
adc46c4cf7 audio_processing/agc: Adds config to set minimum microphone volume at startup
The AGC is currently bumping up the mic volume to 33% at startup if it is below that level. This is to avoid getting stuck in a poor state from which the AGC can not move, simply a too low input audio level. For some users, 33% is instead too loud.

This CL gives the user the possibility to set that level at create time.
- Extends the Config ExperimentalAgc with a startup_mic_volume for the user to set if desired. Note that the bump up does not apply to the legacy AGC and the "regular" AGC is controlled by ExperimentalAgc.
- Without any actions, the same default value as previously is used.
- In addition I removed a return value from InitializeExperimentalAgc() and InitializeTransient()

This has been tested by building Chromium on Mac and verify through apprtc that
1) startup_mic_volume = 128 bumps up to 50%.
2) startup_mic_volume = 500 (out of range) bumps up to 100%.
3) startup_mic_volume = 0 bumps up to 4%, the AGC min level.

BUG=4529
TESTED=locally
R=andrew@webrtc.org, kwiberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/43109004

Cr-Commit-Position: refs/heads/master@{#9004}
2015-04-15 09:42:35 +00:00
mflodman
fcf54bdabb Reland "Avoid critsect for protection- and qm setting callbacks in
VideoSender."

The original Cl is uploaded as patch set 1, the fix in ps#2 and I'll rebase in ps#3.

BUG=4534
R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/46769004

Cr-Commit-Position: refs/heads/master@{#9000}
2015-04-14 19:28:03 +00:00
henrika
0de7bcf06a Removes use of AudioManager.setSpeakerphoneOn in audio manager
BUG=NONE
TEST=AppRTCDemo
R=glaznev@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/51619004

Cr-Commit-Position: refs/heads/master@{#8996}
2015-04-14 07:19:49 +00:00
Åsa Persson
6ae2572fa6 Add missing configuration of rtx payload type for rtp/rtcp module.
BUG=4528
R=pbos@webrtc.org, stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/51639004

Cr-Commit-Position: refs/heads/master@{#8989}
2015-04-13 15:48:16 +00:00
Bjorn Volcker
0f911d71a7 Refactor audio_processing/nsx: Removed usage of macro WEBRTC_SPL_MEMCPY_W16
The macro assumes int16_t pointers, but there is no check for it.

BUG=3348,3353
TESTED=locally on Linux and trybots
R=kwiberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/48959004

Cr-Commit-Position: refs/heads/master@{#8987}
2015-04-13 13:45:07 +00:00
Henrik Lundin
93ef1d85fe Change ACM's CodecManager to hold one encoder instead of an array
With this change, the currently used encoder is held in a scoped_ptr.
iSAC is a special case, since the encoder instance is also a decoder
instance, so it may have to be available also if another send codec is
used. This is accomplished by having a separate scoped_ptr for iSAC.

Remove mirror ID from ACM codec database functions, and remove unused
functions from the database.

COAUTHOR=kwiberg@webrtc.org
BUG=4228
R=tina.legrand@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/48729004

Cr-Commit-Position: refs/heads/master@{#8982}
2015-04-13 07:31:17 +00:00
Peter Boström
3949e8666e Prevent decoder busy loop for send-only channels.
ViEChannels without default encoders doesn't register a receive codec by
default. This makes VideoReceiver::Decode return early, causing a
high-priority thread to effectively be busy looping. This would be
expected to wreck more havoc in a more cross-platform manner than it has
visibly done. On Windows XP however it manages to bring the whole
machine to a grinding halt forcing a reboot if CPU usage hits 100%.

BUG=chromium:470013
R=stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/48049004

Cr-Commit-Position: refs/heads/master@{#8976}
2015-04-10 13:36:32 +00:00
henrika
a125d7d7ad Changes default audio mode in AppRTCDemo to MODE_RINGTONE.
Also prevents that we try to restore audio mode when it has not been changed.

TBR=glaznev
BUG=NONE
TEST=AppRTCDemo and verify that volume control switches from "Ringtone to Phone" mode when call starts and switches back to Ringtone mode when call ends.

Review URL: https://webrtc-codereview.appspot.com/46879004

Cr-Commit-Position: refs/heads/master@{#8975}
2015-04-10 13:19:24 +00:00
Thiago Farina
9bfe3daf73 Cleanup: Remove i420_video_frame.h header.
It is just a pass through to webrtc/video_frame.h. Updated the callers
to include webrtc/video_frame.h instead and removed i420_video_frame.h.

This should fix pbos' TODO in i420_video_frame.h.

Tested on Linux with the following command lines:

$ rm -rf out/
$ ./webrtc/build/gyp_webrtc
$ ninja -C out/Debug

BUG=None
TEST=see above
R=magjed@webrtc.org, pbos@webrtc.org, tommi@webrtc.org
TBR=tommi@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/46819004

Patch from Thiago Farina <tfarina@chromium.org>.

Cr-Commit-Position: refs/heads/master@{#8973}
2015-04-10 10:52:15 +00:00
henrika
09bf1a169b Delays changing to COMMUNICATION mode until streaming starts.
Restores stored audio mode when all streaming stops.

TBR=glaznev
BUG=NONE
TEST=AppRTCDemo

Review URL: https://webrtc-codereview.appspot.com/46869005

Cr-Commit-Position: refs/heads/master@{#8970}
2015-04-10 09:46:54 +00:00
Stefan Holmer
dcbd3acbef Improve BWE plotting and logging to make it possible to use multiple windows/figures.
Also adds plotting of the BWE threshold and offset.

R=solenberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/43119004

Cr-Commit-Position: refs/heads/master@{#8968}
2015-04-10 08:35:33 +00:00
Bjorn Volcker
f2822edf61 Refactor audio_coding/codecs/isac/fix: Removed usage of macro WEBRTC_SPL_MUL_16_16_RSFT
The macro is defined as
#define WEBRTC_SPL_MUL_16_16_RSFT(a, b, c) \
(WEBRTC_SPL_MUL_16_16(a, b) >> (c))

where the latter macro is in C defined as
#define WEBRTC_SPL_MUL_16_16(a, b) \
((int32_t) (((int16_t)(a)) * ((int16_t)(b))))
(For definitions on ARMv7 and MIPS, see common_audio/signal_processing/include/spl_inl_{armv7,mips}.h)

The replacement consists of
- avoiding casts to int16_t if inputs already are int16_t
- adding explicit cast to <type> if result is assigned to <type> (other than int or int32_t)
- minor cleanups like remove of unnecessary parentheses and style changes
- removed commented code lines used during development
- excluded fft.c since there are neon optimizations used and a removal may cause a performance regression

BUG=3348, 3353
TESTED=locally on linux and trybots
R=kwiberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/48799004

Cr-Commit-Position: refs/heads/master@{#8967}
2015-04-10 06:06:46 +00:00
Bjorn Volcker
f6a99e63b6 Refactor audio_processing: Free functions return void
There is no point in returning an error when Free() fails. In fact it can only happen if we have a null pointer as object. There is further no place where the return value is used.

Affected components are
- aec
- aecm
- agc
- ns

BUG=441
R=kwiberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/50579004

Cr-Commit-Position: refs/heads/master@{#8966}
2015-04-10 05:56:59 +00:00
Richard Coles
d417c93c10 Remove android_webview_build conditions.
Now that android_webview_build is no longer supported, remove build
conditionals referencing it and also remove the extra level of
indirection used to reference the cpufeatures target.

BUG=chromium:440793
R=henrika@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/44119005

Patch from Richard Coles <torne@chromium.org>.

Cr-Commit-Position: refs/heads/master@{#8963}
2015-04-09 15:36:13 +00:00
Thiago Farina
3a93986fd5 Exit after printing usage message.
We should not continue the program if the user asked for help.

Tested on Linux with the following command line:

$ out/Debug/frame_analyzer --help

BUG=None
TEST=see above
R=kjellander@webrtc.org, stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/44069004

Patch from Thiago Farina <tfarina@chromium.org>.

Cr-Commit-Position: refs/heads/master@{#8961}
2015-04-09 13:45:17 +00:00