cc: Clean up naming of paint-related identifiers

cc/debug/rasterize_and_record_benchmark_impl.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_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <limits>
@@ skipping 189 matching lines @@
 
     if (!is_solid_color)
       rasterize_results_.pixels_rasterized_with_non_solid_color += tile_size;
 
     rasterize_results_.pixels_rasterized += tile_size;
     rasterize_results_.total_best_time += min_time;
   }
 
   const RasterSource* layer_raster_source = layer->GetRasterSource();
   rasterize_results_.total_memory_usage +=
-      layer_raster_source->GetPictureMemoryUsage();
+      layer_raster_source->GetMemoryUsage();
 }
 
 RasterizeAndRecordBenchmarkImpl::RasterizeResults::RasterizeResults()
     : pixels_rasterized(0),
       pixels_rasterized_with_non_solid_color(0),
       pixels_rasterized_as_opaque(0),
       total_memory_usage(0),
       total_layers(0),
       total_picture_layers(0),
       total_picture_layers_with_no_content(0),
       total_picture_layers_off_screen(0) {
 }
 
 RasterizeAndRecordBenchmarkImpl::RasterizeResults::~RasterizeResults() {}
 
 }  // namespace cc