Add content::SurfaceCapturer

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 82a08a986de17ce9482f8ff8767fbe3403e21a86..56eb1e57bfd1e4d8830aae163df8053ff5aff5a2 100644
--- a/media/base/video_frame.h
+++ b/media/base/video_frame.h
@@ -148,6 +148,7 @@ class MEDIA_EXPORT VideoFrame : public base::RefCountedThreadSafe<VideoFrame> {
       const gfx::Rect& visible_rect,
       const gfx::Size& natural_size,
       uint8* data,
+      size_t data_size,
       base::SharedMemoryHandle handle,
       base::TimeDelta timestamp,
       const base::Closure& no_longer_needed_cb);
@@ -192,6 +193,11 @@ class MEDIA_EXPORT VideoFrame : public base::RefCountedThreadSafe<VideoFrame> {
 
   static size_t NumPlanes(Format format);
 
+  // Returns the required allocation size for a (tightly packed) frame of the
+  // givencoded size and format.
+  static size_t AllocationSize(Format format, const gfx::Size& coded_size);
+
+
   Format format() const { return format_; }
 
   const gfx::Size& coded_size() const { return coded_size_; }