cc: Remove DrawQuad::IterateResoruces

cc/quads/render_pass_draw_quad.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_DRAW_QUAD_H_
 #define CC_QUADS_RENDER_PASS_DRAW_QUAD_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/base/cc_export.h"
@@ skipping 27 matching lines @@
               bool needs_blending,
               RenderPassId render_pass_id,
               ResourceId mask_resource_id,
               const gfx::Vector2dF& mask_uv_scale,
               const gfx::Size& mask_texture_size,
               const FilterOperations& filters,
               const gfx::Vector2dF& filters_scale,
               const FilterOperations& background_filters);
 
   RenderPassId render_pass_id;
-  ResourceId mask_resource_id;
   gfx::Vector2dF mask_uv_scale;
   gfx::Size mask_texture_size;
 
   // Post-processing filters, applied to the pixels in the render pass' texture.
   FilterOperations filters;
 
   // The scale from layer space of the root layer of the render pass to
   // the render pass physical pixels. This scale is applied to the filter
   // parameters for pixel-moving filters. This scale should include
   // content-to-target-space scale, and device pixel ratio.
   gfx::Vector2dF filters_scale;
 
   // Post-processing filters, applied to the pixels showing through the
   // background of the render pass, from behind it.
   FilterOperations background_filters;
 
   // Helper function to generate the normalized uv rect.
   gfx::RectF MaskUVRect() const;
 
-  void IterateResources(const ResourceIteratorCallback& callback) override;
+  ResourceId mask_resource_id() const {
+    return resources.ids[kMaskResourceIdIndex];
+  }
 
   static const RenderPassDrawQuad* MaterialCast(const DrawQuad*);
 
  private:
+  static const size_t kMaskResourceIdIndex = 0;
+
   void ExtendValue(base::trace_event::TracedValue* value) const override;
 };
 
 }  // namespace cc
 
 #endif  // CC_QUADS_RENDER_PASS_DRAW_QUAD_H_