hjon a1cf366ea9 Handle iOS devices with no rear-facing camera
Devices exist (specifically the 16GB 5th generation iPod Touch) that do not have
a rear-facing camera.

This CL:
- Adjusts RTCAVFoundationVideoCapturerInternal so initialization doesn't fail
because a rear-facing camera doesn't exist, but still logs a warning
- Provides a check for whether or not a rear-facing camera can be used (useful
for toggling UI elements)
- Turns an attempt to switch to the rear-facing camera into a no-op with a
warning.

BUG=

Review URL: https://codereview.webrtc.org/1416303003

Cr-Commit-Position: refs/heads/master@{#11992}
2016-03-15 03:55:25 +00:00
..
2015-12-14 03:58:19 +00:00
2015-12-14 03:58:19 +00:00
2016-03-10 05:49:48 +00:00
2016-03-10 05:49:48 +00:00

This is a work-in-progress to update the Objective-C API according to the W3C
specification. The Objective-C API located at talk/app/webrtc/objc is
deprecated, but will remain for the time being.