GitLab

Remove base::Callback in some media unittests.

The following callbacks are called every time a texture is created:
* https://cs.chromium.org/chromium/src/media/renderers/paint_canvas_video_renderer_unittest.cc?rcl=f511dfda653e4f840e520384df599885ae827039&l=934
* https://cs.chromium.org/chromium/src/media/renderers/paint_canvas_video_renderer_unittest.cc?rcl=f511dfda653e4f840e520384df599885ae827039&l=949

The following callback is used in a factory:
* https://cs.chromium.org/chromium/src/media/mojo/test/mojo_video_decoder_integration_test.cc?rcl=99887411e48037a3d41ab6862b460d1f501fea34&l=193

The following base::Callback definition can be omitted by rewriting the gmock code:
* https://cs.chromium.org/chromium/src/media/filters/source_buffer_state_unittest.cc?rcl=f5dd4b5e849703668bd1e606eb6b6dc43027a1ac&l=55

The following callback is called on a stream until false is returned:
* https://cs.chromium.org/chromium/src/media/gpu/video_encode_accelerator_unittest.cc?rcl=f5dd4b5e849703668bd1e606eb6b6dc43027a1ac&l=849

The following callback is called on every frame:
* https://cs.chromium.org/chromium/src/media/remoting/end2end_test_renderer.cc?rcl=f5dd4b5e849703668bd1e606eb6b6dc43027a1ac&l=61

This is part of the base::Callback migration.

Context: https://cs.chromium.org/chromium/src/docs/callback.md?rcl=9fcc3764aea8f97e9f6de4a9ee61d554e67edcda&l=40

Bug: 714018
Change-Id: I568b22ff281c0217f1cb49f6fe9a040cefd24d72
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2058953
Commit-Queue: Dale Curtis <dalecurtis@chromium.org>
Auto-Submit: Jose Lopes <jabolopes@google.com>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#742224}