When audio player restarts after pause it first was playing wrong data.
When audio player restarts after pause it first was playing wrong data.

Problem is that host was getting buffer with pre-pause data from renderer
immediately after restarting. Fix is for renderer to set length of data in
buffer to zero when getting "pause".

BUG=98944

TEST=Start any audio clip, pause, seek to different location, and play again.
TEST=There should be no traces of previous sounds, only new ones.


Review URL: http://codereview.chromium.org/8149001

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@104187 0039d316-1c4b-4281-b951-d872f2087c98

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