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

cc/playback/display_item_list.cc

Index: cc/playback/display_item_list.cc
diff --git a/cc/playback/display_item_list.cc b/cc/playback/display_item_list.cc
index 42011949c3497956ce33762d371ba7cbdf6d0836..32c6c1a752260aeb97e8ed0d99f961f9d1dde455 100644
--- a/cc/playback/display_item_list.cc
+++ b/cc/playback/display_item_list.cc
@@ -266,9 +266,9 @@ void DisplayItemList::GenerateDiscardableImagesMetadata() {
 
 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) {