Clamp YUV videos to their visible size in the shader

cc/quads/yuv_video_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_YUV_VIDEO_DRAW_QUAD_H_
 #define CC_QUADS_YUV_VIDEO_DRAW_QUAD_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/base/cc_export.h"
@@ skipping 12 matching lines @@
 
   ~YUVVideoDrawQuad() override;
 
   YUVVideoDrawQuad();
 
   void SetNew(const SharedQuadState* shared_quad_state,
               const gfx::Rect& rect,
               const gfx::Rect& opaque_rect,
               const gfx::Rect& visible_rect,
               const gfx::RectF& tex_coord_rect,
+              const gfx::Size& tex_size,
               unsigned y_plane_resource_id,
               unsigned u_plane_resource_id,
               unsigned v_plane_resource_id,
               unsigned a_plane_resource_id,
               ColorSpace color_space);
 
   void SetAll(const SharedQuadState* shared_quad_state,
               const gfx::Rect& rect,
               const gfx::Rect& opaque_rect,
               const gfx::Rect& visible_rect,
               bool needs_blending,
               const gfx::RectF& tex_coord_rect,
+              const gfx::Size& tex_size,
               unsigned y_plane_resource_id,
               unsigned u_plane_resource_id,
               unsigned v_plane_resource_id,
               unsigned a_plane_resource_id,
               ColorSpace color_space);
 
   gfx::RectF tex_coord_rect;
+  // Empty texture size implies no clamping of texture coordinates.
+  gfx::Size tex_size;
   unsigned y_plane_resource_id;
   unsigned u_plane_resource_id;
   unsigned v_plane_resource_id;
   unsigned a_plane_resource_id;
   ColorSpace color_space;
 
   void IterateResources(const ResourceIteratorCallback& callback) override;
 
   static const YUVVideoDrawQuad* MaterialCast(const DrawQuad*);
 
  private:
   void ExtendValue(base::debug::TracedValue* value) const override;
 };
 
 }  // namespace cc
 
 #endif  // CC_QUADS_YUV_VIDEO_DRAW_QUAD_H_