Bug 830881 - Wrap debug functions in MOZ_ENABLE_GL_TRACKING define. r=vlad
Bug 830881 - Port layerscope GL changes to new layers. r=vlad
Bug 935924 - [SingleVariant] 3rd party apps are deleted after a factory reset. r=fabrice
Bug 944412 - Fix an issue with the stride in SourceSurfaceSkia::InitFromData. r=gal

After calling SkBitmap::copyTo, the InitFromData method assumed
that the stride of the destination SkBitmap was now the same as the
stride of the source bitmap. This was, however, not the case. Now
the stride is read back out of the destination bitmap.

This was causing a crash due to memory corruption for FORMAT_B8G8R8X8
surfaces.
Bug 945135 - Part 1: Refactor of TrackEncoder and AudioTrackEncoder. r=roc
Bug 945135 - Part 2: Add VideoTrackEncoder. r=roc