[4/5] Add translated rasterization support for PictureLayerTilingSet & below

cc/playback/display_item_list.cc

 // 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.
 
 #include "cc/playback/display_item_list.h"
 
 #include <stddef.h>
 
 #include <string>
 
@@ skipping 248 matching lines @@
   DCHECK(image_map_.empty());
 
   gfx::Rect bounds = rtree_.GetBounds();
   DiscardableImageMap::ScopedMetadataGenerator generator(
       &image_map_, gfx::Size(bounds.right(), bounds.bottom()));
   Raster(generator.canvas(), nullptr, gfx::Rect(), 1.f);
 }
 
 void DisplayItemList::GetDiscardableImagesInRect(
     const gfx::Rect& rect,
-    const gfx::SizeF& raster_scales,
+    float raster_scale,
     std::vector<DrawImage>* images) {
-  image_map_.GetDiscardableImagesInRect(rect, raster_scales, images);
+  image_map_.GetDiscardableImagesInRect(rect, raster_scale, images);
 }
 
 Region DisplayItemList::GetRegionForImage(uint32_t image_id) {
   return image_map_.GetRegionForImage(image_id);
 }
 
 }  // namespace cc