Raster display item lists via a visual rect RTree.

cc/trees/layer_tree_host_unittest.cc

 // 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.
 
 #include "cc/trees/layer_tree_host.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/location.h"
@@ skipping 1561 matching lines @@
     return gfx::Rect(test_layer_->bounds());
   }
   scoped_refptr<DisplayItemList> PaintContentsToDisplayList(
       PaintingControlSetting picture_control) override {
     // Set layer opacity to 0.
     if (test_layer_)
       test_layer_->SetOpacity(0.f);
 
     // Return a dummy display list.
     scoped_refptr<DisplayItemList> display_list =
-        DisplayItemList::Create(PaintableRegion(), DisplayItemListSettings());
+        DisplayItemList::Create(DisplayItemListSettings());
     return display_list;
   }
   bool FillsBoundsCompletely() const override { return false; }
   size_t GetApproximateUnsharedMemoryUsage() const override { return 0; }
 
  private:
   Layer* test_layer_;
 };
 
 // Layer opacity change during paint should not prevent compositor resources
@@ skipping 584 matching lines @@
     void set_layer(Layer* layer) { layer_ = layer; }
 
     gfx::Rect PaintableRegion() override { return gfx::Rect(layer_->bounds()); }
 
     scoped_refptr<DisplayItemList> PaintContentsToDisplayList(
         PaintingControlSetting picture_control) override {
       layer_->SetBounds(gfx::Size(2, 2));
 
       // Return a dummy display list.
       scoped_refptr<DisplayItemList> display_list =
-          DisplayItemList::Create(PaintableRegion(), DisplayItemListSettings());
+          DisplayItemList::Create(DisplayItemListSettings());
       return display_list;
     }
 
     bool FillsBoundsCompletely() const override { return false; }
     size_t GetApproximateUnsharedMemoryUsage() const override { return 0; }
 
    private:
     Layer* layer_;
   };
 
@@ skipping 4348 matching lines @@
     EndTest();
   }
 
   void AfterTest() override {}
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestPaintedDeviceScaleFactor);
 
 }  // namespace
 }  // namespace cc