Add rTree factory to beginRecording call in RasterBufferImpl ctor

cc/resources/gpu_rasterizer.cc

 // Copyright 2015 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/resources/gpu_rasterizer.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
@@ skipping 110 matching lines @@
       new ResourceProvider::ScopedWriteLockGr(resource_provider_,
                                               resource->id()));
   SkSurface* sk_surface = lock->GetSkSurface(
       use_distance_field_text, tile->raster_source()->CanUseLCDText());
 
   locks->push_back(lock.Pass());
 
   if (!sk_surface)
     return;
 
+  SkRTreeFactory factory;
   SkPictureRecorder recorder;
   gfx::Size size = resource->size();
   const int flags = SkPictureRecorder::kComputeSaveLayerInfo_RecordFlag;
   skia::RefPtr<SkCanvas> canvas = skia::SharePtr(
-      recorder.beginRecording(size.width(), size.height(), NULL, flags));
+      recorder.beginRecording(size.width(), size.height(), &factory, flags));
 
   canvas->save();
   tile->raster_source()->PlaybackToCanvas(canvas.get(), tile->content_rect(),
                                           tile->contents_scale());
   canvas->restore();
 
   // Add the canvas and recorded picture to |multi_picture_draw_|.
   skia::RefPtr<SkPicture> picture = skia::AdoptRef(recorder.endRecording());
   multi_picture_draw_.add(sk_surface->getCanvas(), picture.get());
 }
 
 }  // namespace cc