Cleanup shared memory handling in DesktopCapturer interface.
Previously shared memory buffers for DesktopCapturer were created
using DesktopCapturer::Callback::CreateSharedBuffer(). That made it
difficult to proxy DesktopCapturer interface from one thread to another.
This CL adds SharedBufferFactory interface that's allowed to be called
on a background thread. This also simplifies clients that don't
need to use shared memory, as they no longer need to override
CreateSharedBuffer().
Review URL: https://codereview.webrtc.org/1678073003
Cr-Original-Commit-Position: refs/heads/master@{#11543}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: cc9669c6b80a73bf0481e721841a8cf2f1204a38
19 files changed
