commit 17cd3772b0709b222dd43fa8627685034bc1d0aa
author zijiehe <zijiehe@chromium.org> Tue Nov 01 23:02:44 2016
committer Commit bot <commit-bot@chromium.org> Tue Nov 01 23:02:51 2016
tree 00109d252d33daf10c84f82ef58e80a2e4daf770
parent 640db171a96f7c3dc3a267edc8e6bf70f11565e1

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

Review-Url: https://codereview.webrtc.org/2468753002
Cr-Original-Commit-Position: refs/heads/master@{#14880}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: b763e39beba92b45baa09542f949daabbe6258a3