zijiehe 54fd57980f Add CreateWindowCapturer() and CreateScreenCapturer() in DesktopCapturer
This change copies ScreenCapturerDifferWrapper to a new
DesktopCapturerDifferWrapper, and adds DesktopCapturer::CreateWindowCapturer and
DesktopCapturer::CreateScreenCapturer functions to replace
WindowCapturer::Create and ScreenCapturer::Create.

BUG=webrtc:6513

Committed: https://crrev.com/b763e39beba92b45baa09542f949daabbe6258a3
Review-Url: https://codereview.webrtc.org/2468753002
Cr-Original-Commit-Position: refs/heads/master@{#14880}
Cr-Commit-Position: refs/heads/master@{#14903}
2016-11-02 21:49:38 +00:00
..
2016-10-19 01:22:25 +00:00
2016-10-19 01:22:25 +00:00