Migrate ui::Transform to gfx::Transform

ui/compositor/layer_animator.cc

Index: ui/compositor/layer_animator.cc
diff --git a/ui/compositor/layer_animator.cc b/ui/compositor/layer_animator.cc
index 052458626f9c88d97c1541cfdb2ed4bb5d3b9cf9..9082551826784deed6b7dc9863b51a4a41766e1f 100644
--- a/ui/compositor/layer_animator.cc
+++ b/ui/compositor/layer_animator.cc
@@ -73,7 +73,7 @@ LayerAnimator* LayerAnimator::CreateImplicitAnimator() {
   return new LayerAnimator(kDefaultTransitionDuration);
 }
 
-void LayerAnimator::SetTransform(const Transform& transform) {
+void LayerAnimator::SetTransform(const gfx::Transform& transform) {
   base::TimeDelta duration = GetTransitionDuration();
   scoped_ptr<LayerAnimationElement> element(
       LayerAnimationElement::CreateTransformElement(transform, duration));
@@ -81,7 +81,7 @@ void LayerAnimator::SetTransform(const Transform& transform) {
   StartAnimation(new LayerAnimationSequence(element.release()));
 }
 
-Transform LayerAnimator::GetTargetTransform() const {
+gfx::Transform LayerAnimator::GetTargetTransform() const {
   LayerAnimationElement::TargetValue target(delegate());
   GetTargetValue(&target);
   return target.transform;