cc : Compute render surface is_clipped outside property tree building

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 80 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 set_has_contributing_layer_that_escapes_clip(
+      bool contributing_layer_escapes_clip) {
+    has_contributing_layer_that_escapes_clip_ = contributing_layer_escapes_clip;
+  }
+  bool has_contributing_layer_that_escapes_clip() const {
+    return has_contributing_layer_that_escapes_clip_;
+  }
+
   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);
@@ skipping 77 matching lines @@
     gfx::Rect clip_rect;
 
     // True if the surface needs to be clipped by clip_rect.
     bool is_clipped : 1;
   };
 
   DrawProperties draw_properties_;
 
   // Is used to calculate the content rect from property trees.
   gfx::Rect accumulated_content_rect_;
+  // Is used to decide if the surface is clipped.
+  bool has_contributing_layer_that_escapes_clip_ : 1;
   bool surface_property_changed_ : 1;
   bool ancestor_property_changed_ : 1;
 
   bool contributes_to_drawn_surface_ : 1;
 
   LayerImplList layer_list_;
   Occlusion occlusion_in_content_space_;
 
   // The nearest ancestor target surface that will contain the contents of this
   // surface, and that ignores outside occlusion. This can point to itself.
   const RenderSurfaceImpl* nearest_occlusion_immune_ancestor_;
 
   std::unique_ptr<DamageTracker> damage_tracker_;
 
   // For LayerIteratorActions
   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_