Drop time from media::{Audio,Video}Renderer::StartPlayingFrom().

Drop time from media::{Audio,Video}Renderer::StartPlayingFrom().

In preparation for migrating to TimeSource, StartPlayingFrom() is
renamed to StartPlaying() with renderers expected to fetch the current
time instead of being provided the time.

AudioRenderer::SetMediaTime() is temporarily added until we can migrate
the interface to being based on TimeSource.

BUG=370634
R=xhwang@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=284155

[scherkus (not reviewing), 2014-07-18 00:36:18]

xhwang: here's another piece split off from my initial TimeSource prototype CL
[1]

basically we can land both independently, which should make the actual
transition to TimeSource a much smaller CL


[1] https://codereview.chromium.org/379343005/#ps1

[scherkus (not reviewing), 2014-07-18 00:54:56]

https://codereview.chromium.org/400853002/diff/1/media/filters/audio_renderer...
File media/filters/audio_renderer_impl.h (right):

https://codereview.chromium.org/400853002/diff/1/media/filters/audio_renderer...
media/filters/audio_renderer_impl.h:101: //         | StartPlayingFrom()        
^
note to self: update comments

https://codereview.chromium.org/400853002/diff/1/media/filters/video_renderer...
File media/filters/video_renderer_impl.h (right):

https://codereview.chromium.org/400853002/diff/1/media/filters/video_renderer...
media/filters/video_renderer_impl.h:158: //         | StartPlayingFrom()        
^
note to self: update comments

[xhwang, 2014-07-18 04:56:45]

lgtm % tiny nit

https://codereview.chromium.org/400853002/diff/1/media/base/audio_renderer.h
File media/base/audio_renderer.h (right):

https://codereview.chromium.org/400853002/diff/1/media/base/audio_renderer.h#...
media/base/audio_renderer.h:62: // currently .rendering.
remove extra dot

[scherkus (not reviewing), 2014-07-18 15:29:30]

https://codereview.chromium.org/400853002/diff/1/media/base/audio_renderer.h
File media/base/audio_renderer.h (right):

https://codereview.chromium.org/400853002/diff/1/media/base/audio_renderer.h#...
media/base/audio_renderer.h:62: // currently .rendering.
On 2014/07/18 04:56:44, xhwang wrote:
> remove extra dot

Done.

https://codereview.chromium.org/400853002/diff/1/media/filters/audio_renderer...
File media/filters/audio_renderer_impl.h (right):

https://codereview.chromium.org/400853002/diff/1/media/filters/audio_renderer...
media/filters/audio_renderer_impl.h:101: //         | StartPlayingFrom()        
^
On 2014/07/18 00:54:56, scherkus wrote:
> note to self: update comments

Done.

https://codereview.chromium.org/400853002/diff/1/media/filters/video_renderer...
File media/filters/video_renderer_impl.h (right):

https://codereview.chromium.org/400853002/diff/1/media/filters/video_renderer...
media/filters/video_renderer_impl.h:158: //         | StartPlayingFrom()        
^
On 2014/07/18 00:54:56, scherkus wrote:
> note to self: update comments

Done.

[scherkus (not reviewing), 2014-07-18 15:29:34]

The CQ bit was checked by scherkus@chromium.org

[commit-bot: I haz the power, 2014-07-18 15:30:29]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/scherkus@chromium.org/400853002/40001

[scherkus (not reviewing), 2014-07-18 18:02:34]

Committed patchset #2 manually as r284155 (presubmit successful).