Bug 877461. Part 2: Initialize VideoFrame members to 0. r=doublec

--HG--
extra : rebase_source : d447561e74bc760c2ccbcba925e54579e3a15088
Bug 877461. Part 3: Retry libstagefright audio/video decoding if it fails due to a timeout. r=sotaro

--HG--
extra : rebase_source : 2ccd8afaca1e4055eb0105f25754176b0ff37034
Bug 865537. Part 1: Add nsRange::SetEnableGravitationOnElementRemoval to suppress 'gravitation' behavior on node removal. r=smaug

--HG--
extra : rebase_source : 3823c3a0400c80b6f22021f22195f73febd5d85e
Bug 865537. Part 2: The Range used to track the source element pointer for a media element should not gravitate outside the media element. r=cpearce

--HG--
extra : rebase_source : 6d4d5de2f0841fe602821013f0a33bb035d1cb76