Skip decode attempt if first buffer is EndOfStream
Avoids crash that could occur in Android media framework if the first
attempted decode after decoder configuration is of an EndOfStream buffer.
BUG=319589
R=qinmin@chromium.org,acolwell@chromium.org
TEST=All media unit tests pass on Android with MediaCodecBridge, including a couple new ones that crash without the rest of this patch.
Review URL: https://codereview.chromium.org/
63883003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235563 0039d316-1c4b-4281-b951-d872f2087c98