Use the solid color detection to create solid layers

cc/layers/solid_color_layer_impl.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_LAYERS_SOLID_COLOR_LAYER_IMPL_H_
 #define CC_LAYERS_SOLID_COLOR_LAYER_IMPL_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "cc/base/cc_export.h"
 #include "cc/layers/layer_impl.h"
 
 namespace cc {
 
 class CC_EXPORT SolidColorLayerImpl : public LayerImpl {
  public:
   static scoped_ptr<SolidColorLayerImpl> Create(LayerTreeImpl* tree_impl,
                                                 int id) {
     return make_scoped_ptr(new SolidColorLayerImpl(tree_impl, id));
   }
+
+  static void AppendSolidQuads(
+      RenderPass* render_pass,
+      const OcclusionTracker<LayerImpl>& occlusion_tracker,
+      AppendQuadsData* append_quads_data,
+      SharedQuadState* shared_quad_state,
+      const gfx::Size& content_bounds,
+      const gfx::Transform& target_space_transform,
+      SkColor color);
+
   virtual ~SolidColorLayerImpl();
 
   // LayerImpl overrides.
   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
       OVERRIDE;
   virtual void AppendQuads(RenderPass* render_pass,
                            const OcclusionTracker<LayerImpl>& occlusion_tracker,
                            AppendQuadsData* append_quads_data) OVERRIDE;
 
  protected:
   SolidColorLayerImpl(LayerTreeImpl* tree_impl, int id);
 
  private:
   virtual const char* LayerTypeAsString() const OVERRIDE;
 
-  const int tile_size_;
-
   DISALLOW_COPY_AND_ASSIGN(SolidColorLayerImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_SOLID_COLOR_LAYER_IMPL_H_