Merge 159842 - ReadPixels from known-usable textures, and give SkBitmap its precious BGRA.

media/base/video_frame.h

Index: media/base/video_frame.h
===================================================================
--- media/base/video_frame.h	(revision 161172)
+++ media/base/video_frame.h	(working copy)
@@ -76,7 +76,7 @@
       const base::Closure& no_longer_needed);
 
   // Read pixels from the native texture backing |*this| and write
-  // them to |*pixels| as RGBA.  |pixels| must point to a buffer at
+  // them to |*pixels| as BGRA.  |pixels| must point to a buffer at
   // least as large as 4*data_size().width()*data_size().height().
   void ReadPixelsFromNativeTexture(void* pixels);