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

media/base/video_frame.h

Index: media/base/video_frame.h
diff --git a/media/base/video_frame.h b/media/base/video_frame.h
index 9d16d2cf89fc005025ea299fbad00f8e9d31584e..1357db38dbfe288461655ee6436b01fb741fab03 100644
--- a/media/base/video_frame.h
+++ b/media/base/video_frame.h
@@ -76,7 +76,7 @@ class MEDIA_EXPORT VideoFrame : public base::RefCountedThreadSafe<VideoFrame> {
       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);