cc: Renamed approximate{BytesUsed,OpCount} in paint op buffer.

cc/paint/filter_display_item.h

 // Copyright 2014 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_PAINT_FILTER_DISPLAY_ITEM_H_
 #define CC_PAINT_FILTER_DISPLAY_ITEM_H_
 
 #include "cc/base/filter_operations.h"
 #include "cc/paint/display_item.h"
 #include "cc/paint/paint_export.h"
 #include "ui/gfx/geometry/point_f.h"
 #include "ui/gfx/geometry/rect_f.h"
 
 namespace cc {
 
 class CC_PAINT_EXPORT FilterDisplayItem : public DisplayItem {
  public:
   FilterDisplayItem(const FilterOperations& filters,
                     const gfx::RectF& bounds,
                     const gfx::PointF& origin);
   ~FilterDisplayItem() override;
 
   size_t ExternalMemoryUsage() const {
     // FilterOperations doesn't expose its capacity, but size is probably good
     // enough.
     return filters.size() * sizeof(filters.at(0));
   }
-  int ApproximateOpCount() const { return 1; }
+  int OpCount() const { return 1; }
 
   const FilterOperations filters;
   const gfx::RectF bounds;
   const gfx::PointF origin;
 };
 
 class CC_PAINT_EXPORT EndFilterDisplayItem : public DisplayItem {
  public:
   EndFilterDisplayItem();
   ~EndFilterDisplayItem() override;
 
-  int ApproximateOpCount() const { return 0; }
+  int OpCount() const { return 0; }
 };
 
 }  // namespace cc
 
 #endif  // CC_PAINT_FILTER_DISPLAY_ITEM_H_