cc: Remove DrawQuad::IterateResoruces

cc/quads/texture_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_TEXTURE_DRAW_QUAD_H_
 #define CC_QUADS_TEXTURE_DRAW_QUAD_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "cc/base/cc_export.h"
 #include "cc/quads/draw_quad.h"
@@ skipping 25 matching lines @@
               bool needs_blending,
               unsigned resource_id,
               bool premultiplied_alpha,
               const gfx::PointF& uv_top_left,
               const gfx::PointF& uv_bottom_right,
               SkColor background_color,
               const float vertex_opacity[4],
               bool y_flipped,
               bool nearest_neighbor);
 
-  unsigned resource_id;
   bool premultiplied_alpha;
   gfx::PointF uv_top_left;
   gfx::PointF uv_bottom_right;
   SkColor background_color;
   float vertex_opacity[4];
   bool y_flipped;
   bool nearest_neighbor;
 
-  void IterateResources(const ResourceIteratorCallback& callback) override;
+  ResourceId resource_id() const { return resources.ids[kResourceIdIndex]; }
 
   static const TextureDrawQuad* MaterialCast(const DrawQuad*);
 
  private:
+  static const size_t kResourceIdIndex = 0;
+
   void ExtendValue(base::trace_event::TracedValue* value) const override;
 };
 
 }  // namespace cc
 
 #endif  // CC_QUADS_TEXTURE_DRAW_QUAD_H_