cc: Move calculation of content rect to RenderSurfaceImpl class

cc/layers/render_surface_impl.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_LAYERS_RENDER_SURFACE_IMPL_H_
 #define CC_LAYERS_RENDER_SURFACE_IMPL_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 99 matching lines @@
   // RenderSurface that is being drawn for the current frame. It could still be
   // drawn to as a target, but its output will not be a part of any other
   // surface.
   bool contributes_to_drawn_surface() const {
     return contributes_to_drawn_surface_;
   }
   void set_contributes_to_drawn_surface(bool contributes_to_drawn_surface) {
     contributes_to_drawn_surface_ = contributes_to_drawn_surface;
   }
 
-  void SetContentRect(const gfx::Rect& content_rect);
+  void CalculateContentRectFromAccumulatedContentRect(int max_texture_size);
+  void SetContentRectToViewport();
+  void SetContentRectForTesting(const gfx::Rect& rect);
   gfx::Rect content_rect() const { return draw_properties_.content_rect; }
 
   void ClearAccumulatedContentRect();
   void AccumulateContentRectFromContributingLayer(
       LayerImpl* contributing_layer);
   void AccumulateContentRectFromContributingRenderSurface(
       RenderSurfaceImpl* contributing_surface);
 
   gfx::Rect accumulated_content_rect() const {
     return accumulated_content_rect_;
@@ skipping 29 matching lines @@
                    float debug_border_width,
                    LayerImpl* mask_layer,
                    AppendQuadsData* append_quads_data,
                    RenderPassId render_pass_id);
 
   int TransformTreeIndex() const;
   int ClipTreeIndex() const;
   int EffectTreeIndex() const;
 
  private:
+  void SetContentRect(const gfx::Rect& content_rect);
+  gfx::Rect CalculateClippedAccumulatedContentRect();
+
   LayerImpl* owning_layer_;
 
   // Container for properties that render surfaces need to compute before they
   // can be drawn.
   struct DrawProperties {
     DrawProperties();
     ~DrawProperties();
 
     float draw_opacity;
 
@@ skipping 39 matching lines @@
   int target_render_surface_layer_index_history_;
   size_t current_layer_index_history_;
 
   friend class LayerIterator;
 
   DISALLOW_COPY_AND_ASSIGN(RenderSurfaceImpl);
 };
 
 }  // namespace cc
 #endif  // CC_LAYERS_RENDER_SURFACE_IMPL_H_