The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc

commit 2875bf04f6a471d51491cb45fc3eefba7ae5e4fc
Author: tguilbert <tguilbert@chromium.org>
Date: Sat Aug 13 12:11:55 2016

Add OnDurationChange() to RenderClient

Currently, only the DemuxerHost interface allows the propragation of
duration changes; the demuxer is responsible for detecting duration
changes and notifying the Pipeline.

In the case of the MediaPlayerRenderer, we use a MediaUrlDemuxer, which
never receives duration updates. Instead, all metadata parsing happens
on the browser side, in the MediaPlayerRenderer. We therefore need a
way to propagate the duration changes from the MediaPlayerRenderer to
the pipeline.

This change adds an OnDurationChange method to both the
media::RendererClient and the mojom::RendererClient interfaces.

BUG= 635991 

Review-Url: https://codereview.chromium.org/2243683002
Cr-Commit-Position: refs/heads/master@{#411893}

[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/content/browser/media/android/media_player_renderer.cc
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/content/renderer/media/android/media_player_renderer_client.cc
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/content/renderer/media/android/media_player_renderer_client.h
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/media/base/mock_filters.h
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/media/base/pipeline_impl.cc
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/media/base/renderer_client.h
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/media/mojo/clients/mojo_renderer.cc
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/media/mojo/clients/mojo_renderer.h
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/media/mojo/interfaces/renderer.mojom
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/media/mojo/services/media_mojo_unittest.cc
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/media/mojo/services/mojo_renderer_service.cc
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/media/mojo/services/mojo_renderer_service.h
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/media/renderers/audio_renderer_impl_unittest.cc
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/media/renderers/renderer_impl.cc
[modify] https://crrev.com/2875bf04f6a471d51491cb45fc3eefba7ae5e4fc/media/renderers/renderer_impl_unittest.cc