Preliminary compositor disabling patch.

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 58 matching lines @@
   gfx::Rect rect;
 
   // This specifies the region of the quad that is opaque. This rect lives in
   // content space.
   gfx::Rect opaque_rect;
 
   // Allows changing the rect that gets drawn to make it smaller. This value
   // should be clipped to |rect|. This rect lives in content space.
   gfx::Rect visible_rect;
 
+  // If true, this quad has individual damage and the damage rect is not stored
+  // in RenderPass::damage_rect.
+  bool damaged;
+
   // By default blending is used when some part of the quad is not opaque.
   // With this setting, it is possible to force blending on regardless of the
   // opaque area.
   bool needs_blending;
 
   // Stores state common to a large bundle of quads; kept separate for memory
   // efficiency. There is special treatment to reconstruct these pointers
   // during serialization.
   const SharedQuadState* shared_quad_state;
 
@@ skipping 47 matching lines @@
               const gfx::Rect& rect,
               const gfx::Rect& opaque_rect,
               const gfx::Rect& visible_rect,
               bool needs_blending);
   virtual void ExtendValue(base::trace_event::TracedValue* value) const = 0;
 };
 
 }  // namespace cc
 
 #endif  // CC_QUADS_DRAW_QUAD_H_