Turn off computation of the interest rect in cc in synchronized paint mode.

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 <algorithm>
 #include <limits>
 #include <string>
 
@@ skipping 129 matching lines @@
         break;
       case DisplayListRecordingSource::RECORD_WITH_CONSTRUCTION_DISABLED:
         painting_control =
             ContentLayerClient::DISPLAY_LIST_CONSTRUCTION_DISABLED;
         break;
       default:
         NOTREACHED();
     }
     base::TimeDelta min_time = base::TimeDelta::Max();
     size_t memory_used = 0;
-
+    gfx::Rect recording_viewport = visible_layer_rect;
     scoped_refptr<DisplayItemList> display_list;
     for (int i = 0; i < record_repeat_count_; ++i) {
       // Run for a minimum amount of time to avoid problems with timer
       // quantization when the layer is very small.
       LapTimer timer(kWarmupRuns,
                      base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
                      kTimeCheckInterval);
 
       do {
-        display_list = painter->PaintContentsToDisplayList(visible_layer_rect,
-                                                           painting_control);
+        display_list = painter->PaintContentsToDisplayList(painting_control,
+                                                           &recording_viewport);
         if (display_list->ShouldBeAnalyzedForSolidColor()) {
           gfx::Size layer_size = layer->paint_properties().bounds;
           skia::AnalysisCanvas canvas(layer_size.width(), layer_size.height());
           display_list->Raster(&canvas, nullptr, gfx::Rect(), 1.f);
         }
 
         if (memory_used) {
           // Verify we are recording the same thing each time.
           DCHECK_EQ(memory_used, display_list->ApproximateMemoryUsage());
         } else {
@@ skipping 18 matching lines @@
   }
 }
 
 RasterizeAndRecordBenchmark::RecordResults::RecordResults()
     : pixels_recorded(0), bytes_used(0) {
 }
 
 RasterizeAndRecordBenchmark::RecordResults::~RecordResults() {}
 
 }  // namespace cc