Adding YUVA support for enabling Alpha Playback

cc/quads/draw_quad.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_QUADS_DRAW_QUAD_H_
 #define CC_QUADS_DRAW_QUAD_H_
 
 #include "base/callback.h"
 #include "cc/base/cc_export.h"
 #include "cc/quads/shared_quad_state.h"
@@ skipping 11 matching lines @@
     INVALID,
     CHECKERBOARD,
     DEBUG_BORDER,
     IO_SURFACE_CONTENT,
     PICTURE_CONTENT,
     RENDER_PASS,
     TEXTURE_CONTENT,
     SOLID_COLOR,
     TILED_CONTENT,
     YUV_VIDEO_CONTENT,
+    YUVA_VIDEO_CONTENT,
     STREAM_VIDEO_CONTENT,
   };
 
   virtual ~DrawQuad();
 
   scoped_ptr<DrawQuad> Copy(
       const SharedQuadState* copied_shared_quad_state) const;
 
   // TODO(danakj): Chromify or remove these SharedQuadState helpers.
   const gfx::Transform& quadTransform() const { return shared_quad_state->content_to_target_transform; }
@@ skipping 69 matching lines @@
               Material material,
               gfx::Rect rect,
               gfx::Rect opaque_rect,
               gfx::Rect visible_rect,
               bool needs_blending);
 };
 
 }  // namespace cc
 
 #endif  // CC_QUADS_DRAW_QUAD_H_