Migrate ui::Transform to gfx::Transform

ui/compositor/layer.cc

Index: ui/compositor/layer.cc
diff --git a/ui/compositor/layer.cc b/ui/compositor/layer.cc
index e71cbd594ff27677bf7f7e34fe790a97579f9b90..ad6aaf1e19681edb123d81219aa19a9c8b747100 100644
--- a/ui/compositor/layer.cc
+++ b/ui/compositor/layer.cc
@@ -186,7 +186,7 @@ LayerAnimator* Layer::GetAnimator() {
   return animator_.get();
 }
 
-void Layer::SetTransform(const ui::Transform& transform) {
+void Layer::SetTransform(const gfx::Transform& transform) {
   GetAnimator()->SetTransform(transform);
 }
 
@@ -563,7 +563,7 @@ void Layer::StackRelativeTo(Layer* child, Layer* other, bool above) {
 
 bool Layer::ConvertPointForAncestor(const Layer* ancestor,
                                     gfx::Point* point) const {
-  ui::Transform transform;
+  gfx::Transform transform;
   bool result = GetTransformRelativeTo(ancestor, &transform);
   gfx::Point3f p(*point);
   transform.TransformPoint(p);
@@ -573,7 +573,7 @@ bool Layer::ConvertPointForAncestor(const Layer* ancestor,
 
 bool Layer::ConvertPointFromAncestor(const Layer* ancestor,
                                      gfx::Point* point) const {
-  ui::Transform transform;
+  gfx::Transform transform;
   bool result = GetTransformRelativeTo(ancestor, &transform);
   gfx::Point3f p(*point);
   transform.TransformPointReverse(p);
@@ -582,7 +582,7 @@ bool Layer::ConvertPointFromAncestor(const Layer* ancestor,
 }
 
 bool Layer::GetTransformRelativeTo(const Layer* ancestor,
-                                   ui::Transform* transform) const {
+                                   gfx::Transform* transform) const {
   const Layer* p = this;
   for (; p && p != ancestor; p = p->parent()) {
     if (p->transform().HasChange())
@@ -619,7 +619,7 @@ void Layer::SetBoundsImmediately(const gfx::Rect& bounds) {
   }
 }
 
-void Layer::SetTransformImmediately(const ui::Transform& transform) {
+void Layer::SetTransformImmediately(const gfx::Transform& transform) {
   transform_ = transform;
 
   RecomputeTransform();
@@ -725,7 +725,7 @@ void Layer::CreateWebLayer() {
 }
 
 void Layer::RecomputeTransform() {
-  ui::Transform scale_translate;
+  gfx::Transform scale_translate;
   scale_translate.matrix().set3x3(device_scale_factor_, 0, 0,
                                   0, device_scale_factor_, 0,
                                   0, 0, 1);