cc: Move tiling management out of draw properties calculation.

cc/resources/picture_layer_tiling_set.cc

Index: cc/resources/picture_layer_tiling_set.cc
diff --git a/cc/resources/picture_layer_tiling_set.cc b/cc/resources/picture_layer_tiling_set.cc
index fa76fc14c38e6abf9fc2167e932f1ba5f3e46ec3..4192c92aeb6b446643bed64790b09c97ccecb759 100644
--- a/cc/resources/picture_layer_tiling_set.cc
+++ b/cc/resources/picture_layer_tiling_set.cc
@@ -309,12 +309,9 @@ PictureLayerTilingSet::CoverageIterator::operator bool() const {
 
 void PictureLayerTilingSet::UpdateTilePriorities(
     WhichTree tree,
-    const gfx::Rect& visible_content_rect,
+    const gfx::Rect& visible_layer_rect,
     float layer_contents_scale,
     double current_frame_time_in_seconds) {
-  gfx::Rect visible_layer_rect = gfx::ScaleToEnclosingRect(
-      visible_content_rect, 1.f / layer_contents_scale);
-
   for (size_t i = 0; i < tilings_.size(); ++i) {
     tilings_[i]->UpdateTilePriorities(tree,
                                       visible_layer_rect,