cc: Remove DrawQuad::IterateResoruces

cc/layers/layer_impl.h

Index: cc/layers/layer_impl.h
diff --git a/cc/layers/layer_impl.h b/cc/layers/layer_impl.h
index 980390224342fbe7b1dc03de3aa5a53ff557f4ff..8239fc847f5d53ae111c8a5c434209610c000005 100644
--- a/cc/layers/layer_impl.h
+++ b/cc/layers/layer_impl.h
@@ -247,11 +247,7 @@ class CC_EXPORT LayerImpl : public LayerAnimationValueObserver,
   virtual void DidDraw(ResourceProvider* resource_provider);
 
   // Verify that the resource ids in the quad are valid.
-  void ValidateQuadResources(DrawQuad* quad) const {
-#if DCHECK_IS_ON()

[danakj, 2015/05/28 17:10:05]

The idea here is that the function is a no-op in the header so compiles away
easily when DCHECKS are off.

[vmpstr, 2015/05/28 18:38:45]

OK. I'm not too sure how much of an impact this makes, but I'd rather leave this
as it was then :) (I undid my changes)

-    ValidateQuadResourcesInternal(quad);
-#endif
-  }
+  void ValidateQuadResources(DrawQuad* quad) const;
 
   virtual void GetContentsResourceId(ResourceId* resource_id,
                                      gfx::Size* resource_size) const;
@@ -691,8 +687,6 @@ class CC_EXPORT LayerImpl : public LayerAnimationValueObserver,
   gfx::Rect GetScaledEnclosingRectInTargetSpace(float scale) const;
 
  private:
-  void ValidateQuadResourcesInternal(DrawQuad* quad) const;
-
   void PushScrollOffset(const gfx::ScrollOffset* scroll_offset);
   // If the new scroll offset is assigned from the root scroll offset delegate,
   // LayerImpl won't inform the root scroll offset delegate about the scroll