vaapi plumbing to allow hardware video overlays

content/common/gpu/media/vaapi_picture.h

Index: content/common/gpu/media/vaapi_picture.h
diff --git a/content/common/gpu/media/vaapi_picture.h b/content/common/gpu/media/vaapi_picture.h
index 44d9db733f91097c66a0abfe237483dafc544959..ad43dfa3af303270cb0be47a8b1fbe09b662511c 100644
--- a/content/common/gpu/media/vaapi_picture.h
+++ b/content/common/gpu/media/vaapi_picture.h
@@ -16,6 +16,10 @@
 #include "base/threading/non_thread_safe.h"
 #include "ui/gfx/geometry/size.h"
 
+namespace gfx {
+class GLImage;
+}
+
 namespace content {
 
 class VASurface;
@@ -33,6 +37,11 @@ class VaapiPicture : public base::NonThreadSafe {
   uint32 texture_id() const { return texture_id_; }
   const gfx::Size& size() const { return size_; }
 
+  virtual bool AllowOverlay() const;

[Pawel Osciak, 2015/01/28 23:52:02]

Please document.

+
+  // Returns the |GLImage|, if any, to bind to the texture.
+  virtual scoped_refptr<gfx::GLImage> GetImageToBind() = 0;
+
   // Downloads the |va_surface| into the picture, potentially scaling
   // it if needed.
   virtual bool DownloadFromSurface(