Raster display item lists via a visual rect RTree.

cc/playback/recording_source.cc

 // Copyright 2014 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/playback/recording_source.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 
@@ skipping 215 matching lines @@
   is_solid_color_ = false;
   solid_color_ = SK_ColorTRANSPARENT;
 
   if (!display_list_->ShouldBeAnalyzedForSolidColor())
     return;
 
   TRACE_EVENT1("cc", "RecordingSource::DetermineIfSolidColor", "opcount",
                display_list_->ApproximateOpCount());
   gfx::Size layer_size = GetSize();
   skia::AnalysisCanvas canvas(layer_size.width(), layer_size.height());
-  display_list_->Raster(&canvas, nullptr, gfx::Rect(), 1.f);
+  display_list_->Raster(&canvas, nullptr, gfx::Rect(layer_size), 1.f);
   is_solid_color_ = canvas.GetColorIfSolid(&solid_color_);
 }
 
 void RecordingSource::Clear() {
   recorded_viewport_ = gfx::Rect();
   display_list_ = nullptr;
   painter_reported_memory_usage_ = 0;
   is_solid_color_ = false;
 }
 
 }  // namespace cc