cc : Make CallFunctionForSubtree on impl use layer iterator

cc/debug/rasterize_and_record_benchmark.cc

 // Copyright 2013 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/debug/rasterize_and_record_benchmark.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <limits>
@@ skipping 52 matching lines @@
   if (settings->HasKey("record_repeat_count"))
     settings->GetInteger("record_repeat_count", &record_repeat_count_);
 }
 
 RasterizeAndRecordBenchmark::~RasterizeAndRecordBenchmark() {
   weak_ptr_factory_.InvalidateWeakPtrs();
 }
 
 void RasterizeAndRecordBenchmark::DidUpdateLayers(LayerTreeHost* host) {
   host_ = host;
-  LayerTreeHostCommon::CallFunctionForSubtree(
-      host->root_layer(),
-      [this](Layer* layer) { layer->RunMicroBenchmark(this); });
+  LayerTreeHostCommon::CallFunctionForEveryLayer(
+      host, [this](Layer* layer) { layer->RunMicroBenchmark(this); });
 
   DCHECK(!results_.get());
   results_ = make_scoped_ptr(new base::DictionaryValue);
   results_->SetInteger("pixels_recorded", record_results_.pixels_recorded);
   results_->SetInteger("picture_memory_usage",
                        static_cast<int>(record_results_.bytes_used));
 
   for (int i = 0; i < RecordingSource::RECORDING_MODE_COUNT; i++) {
     std::string name = base::StringPrintf("record_time%s_ms", kModeSuffixes[i]);
     results_->SetDouble(name,
@@ skipping 106 matching lines @@
   }
 }
 
 RasterizeAndRecordBenchmark::RecordResults::RecordResults()
     : pixels_recorded(0), bytes_used(0) {
 }
 
 RasterizeAndRecordBenchmark::RecordResults::~RecordResults() {}
 
 }  // namespace cc