sergeyu 4a627a8c13 Use std::unique_ptr<> to pass frame ownership in DesktopCapturer impls.
Previously raw pointers were used for owned DesktopFrame instances.
Updated all screen and window capturer implementations to use
std::unique_ptr<>.

Also includes some other cleanups in the capturers:
 - s/NULL/nullptr
 - moved default initializers to class definition.

BUG=webrtc:5950

Review-Url: https://codereview.webrtc.org/1988783003
Cr-Commit-Position: refs/heads/master@{#13032}
2016-06-03 12:15:32 +00:00
..