Preliminary compositor disabling patch.

cc/quads/render_pass.h

 // Copyright 2011 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_RENDER_PASS_H_
 #define CC_QUADS_RENDER_PASS_H_
 
 #include <utility>
 
 #include "base/basictypes.h"
@@ skipping 56 matching lines @@
                       ScopedPtrVector<RenderPass>* out);
 
   void SetNew(RenderPassId id,
               const gfx::Rect& output_rect,
               const gfx::Rect& damage_rect,
               const gfx::Transform& transform_to_root_target);
 
   void SetAll(RenderPassId id,
               const gfx::Rect& output_rect,
               const gfx::Rect& damage_rect,
+              const gfx::Rect& overlay_rect,
               const gfx::Transform& transform_to_root_target,
               bool has_transparent_background);
 
   void AsValueInto(base::trace_event::TracedValue* dict) const;
 
   SharedQuadState* CreateAndAppendSharedQuadState();
 
   template <typename DrawQuadType>
   DrawQuadType* CreateAndAppendDrawQuad() {
     return quad_list.AllocateAndConstruct<DrawQuadType>();
   }
 
   RenderPassDrawQuad* CopyFromAndAppendRenderPassDrawQuad(
       const RenderPassDrawQuad* quad,
       const SharedQuadState* shared_quad_state,
       RenderPassId render_pass_id);
   DrawQuad* CopyFromAndAppendDrawQuad(const DrawQuad* quad,
                                       const SharedQuadState* shared_quad_state);
 
+  // Recalculates |overlay_damage|, call this when overlay quads are removed
+  // from the list.
+  void RecalculateOverlayDamage();
+
+  // Unions |overlay_rect| into |damage_rect|.
+  void UnionOverlayDamage();
+
+  gfx::Rect GetFullDamageRect();
+
   // Uniquely identifies the render pass in the compositor's current frame.
   RenderPassId id;
 
   // These are in the space of the render pass' physical pixels.
   gfx::Rect output_rect;
   gfx::Rect damage_rect;
+  gfx::Rect overlay_rect;
 
   // Transforms from the origin of the |output_rect| to the origin of the root
   // render pass' |output_rect|.
   gfx::Transform transform_to_root_target;
 
   // If false, the pixels in the render pass' texture are all opaque.
   bool has_transparent_background;
 
   // If non-empty, the renderer should produce a copy of the render pass'
   // contents as a bitmap, and give a copy of the bitmap to each callback in
@@ skipping 28 matching lines @@
   }
 };
 }  // namespace BASE_HASH_NAMESPACE
 
 namespace cc {
 typedef ScopedPtrVector<RenderPass> RenderPassList;
 typedef base::hash_map<RenderPassId, RenderPass*> RenderPassIdHashMap;
 }  // namespace cc
 
 #endif  // CC_QUADS_RENDER_PASS_H_