Rasterize at maximum scale for scale animations on CPU-rasterized layers

cc/trees/layer_tree_host_unittest.cc

Index: cc/trees/layer_tree_host_unittest.cc
diff --git a/cc/trees/layer_tree_host_unittest.cc b/cc/trees/layer_tree_host_unittest.cc
index 391f7c083e474a6c40428f4b50e04546b4410b00..8ee25c2382b1de83c09d75bd8c9d03dbab20872c 100644
--- a/cc/trees/layer_tree_host_unittest.cc
+++ b/cc/trees/layer_tree_host_unittest.cc
@@ -1391,6 +1391,7 @@ class NoScaleContentLayer : public ContentLayer {
   virtual void CalculateContentsScale(float ideal_contents_scale,
                                       float device_scale_factor,
                                       float page_scale_factor,
+                                      float maximum_animation_contents_scale,
                                       bool animating_transform_to_screen,
                                       float* contents_scale_x,
                                       float* contents_scale_y,
@@ -1399,6 +1400,7 @@ class NoScaleContentLayer : public ContentLayer {
     Layer::CalculateContentsScale(ideal_contents_scale,
                                   device_scale_factor,
                                   page_scale_factor,
+                                  maximum_animation_contents_scale,
                                   animating_transform_to_screen,
                                   contents_scale_x,
                                   contents_scale_y,