cc: Add UMA stats for record and raster time.

cc/resources/picture_pile.h

 // Copyright 2012 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.
 
 #ifndef CC_RESOURCES_PICTURE_PILE_H_
 #define CC_RESOURCES_PICTURE_PILE_H_
 
 #include <bitset>
 #include <utility>
 #include <vector>
@@ skipping 10 matching lines @@
  public:
   PicturePile(float min_contents_scale, const gfx::Size& tile_grid_size);
   ~PicturePile() override;
 
   // RecordingSource overrides.
   bool UpdateAndExpandInvalidation(ContentLayerClient* painter,
                                    Region* invalidation,
                                    const gfx::Size& layer_size,
                                    const gfx::Rect& visible_layer_rect,
                                    int frame_number,
-                                   RecordingMode recording_mode) override;
+                                   RecordingMode recording_mode,
+                                   int* recorded_area) override;
   scoped_refptr<RasterSource> CreateRasterSource(
       bool can_use_lcd_text) const override;
   gfx::Size GetSize() const final;
   void SetEmptyBounds() override;
   void SetSlowdownRasterScaleFactor(int factor) override;
   void SetGatherPixelRefs(bool gather_pixel_refs) override;
   void SetBackgroundColor(SkColor background_color) override;
   void SetRequiresClear(bool requires_clear) override;
   bool IsSuitableForGpuRasterization() const override;
   void SetUnsuitableForGpuRasterizationForTesting() override;
@@ skipping 59 matching lines @@
   void SetBufferPixels(int buffer_pixels);
 
   bool is_suitable_for_gpu_rasterization_;
 
   DISALLOW_COPY_AND_ASSIGN(PicturePile);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_PICTURE_PILE_H_