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

cc/playback/raster_source.cc

Index: cc/playback/raster_source.cc
diff --git a/cc/playback/raster_source.cc b/cc/playback/raster_source.cc
index 4f4e552dbfe5aa4e2b605a9cfbbcd7c29d6a859c..54f9aa33e96db11713b4c97e5d2c8dc552a33422 100644
--- a/cc/playback/raster_source.cc
+++ b/cc/playback/raster_source.cc
@@ -219,12 +219,12 @@ size_t RasterSource::GetPictureMemoryUsage() const {
 }
 
 bool RasterSource::PerformSolidColorAnalysis(const gfx::Rect& content_rect,
-                                             const gfx::SizeF& raster_scales,
+                                             float raster_scale,
                                              SkColor* color) const {
   TRACE_EVENT0("cc", "RasterSource::PerformSolidColorAnalysis");
 
   gfx::Rect layer_rect = gfx::ScaleToEnclosingRect(
-      content_rect, 1.f / raster_scales.width(), 1.f / raster_scales.height());
+      content_rect, 1.f / raster_scale);
 
   layer_rect.Intersect(gfx::Rect(size_));
   skia::AnalysisCanvas canvas(layer_rect.width(), layer_rect.height());
@@ -235,10 +235,10 @@ bool RasterSource::PerformSolidColorAnalysis(const gfx::Rect& content_rect,
 
 void RasterSource::GetDiscardableImagesInRect(
     const gfx::Rect& layer_rect,
-    const gfx::SizeF& raster_scales,
+    float raster_scale,
     std::vector<DrawImage>* images) const {
   DCHECK_EQ(0u, images->size());
-  display_list_->GetDiscardableImagesInRect(layer_rect, raster_scales, images);
+  display_list_->GetDiscardableImagesInRect(layer_rect, raster_scale, images);
 }
 
 bool RasterSource::CoversRect(const gfx::Rect& layer_rect) const {