Remove Layer{Impl}::TransformIsAnimating.

cc/trees/layer_tree_host_common_unittest.cc

Index: cc/trees/layer_tree_host_common_unittest.cc
diff --git a/cc/trees/layer_tree_host_common_unittest.cc b/cc/trees/layer_tree_host_common_unittest.cc
index e4a6f57d3d250c7efd054050ca9c8e0e2e64b671..aed6857c7a5666ec089d57058569c8ef53319777 100644
--- a/cc/trees/layer_tree_host_common_unittest.cc
+++ b/cc/trees/layer_tree_host_common_unittest.cc
@@ -2134,6 +2134,11 @@ TEST_F(LayerTreeHostCommonTest, LargeTransforms) {
   EXPECT_EQ(gfx::Rect(), grand_child->visible_layer_rect());
 }
 
+static bool TransformIsAnimating(LayerImpl* layer) {
+  return layer->GetMutatorHost()->IsAnimatingTransformProperty(
+      layer->element_id(), layer->GetElementTypeForAnimation());
+}
+
 TEST_F(LayerTreeHostCommonTest,
        ScreenSpaceTransformIsAnimatingWithDelayedAnimation) {
   LayerImpl* root = root_layer_for_testing();
@@ -2166,7 +2171,7 @@ TEST_F(LayerTreeHostCommonTest,
   EXPECT_FALSE(root->screen_space_transform_is_animating());
   EXPECT_FALSE(child->screen_space_transform_is_animating());
 
-  EXPECT_FALSE(grand_child->TransformIsAnimating());
+  EXPECT_FALSE(TransformIsAnimating(grand_child));
   EXPECT_TRUE(grand_child->HasPotentiallyRunningTransformAnimation());
   EXPECT_TRUE(grand_child->screen_space_transform_is_animating());
   EXPECT_TRUE(great_grand_child->screen_space_transform_is_animating());