Refactor TransformPoint{,Reverse}.

ui/aura/root_window.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/aura/root_window.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 427 matching lines @@
 }
 
 void RootWindow::ConvertPointFromNativeScreen(gfx::Point* point) const {
   gfx::Point location = host_->GetLocationOnNativeScreen();
   point->Offset(-location.x(), -location.y());
   ConvertPointFromHost(point);
 }
 
 void RootWindow::ConvertPointToHost(gfx::Point* point) const {
   gfx::Point3F point_3f(*point);
-  GetRootTransform().TransformPoint(point_3f);
+  GetRootTransform().TransformPoint(&point_3f);
   *point = gfx::ToFlooredPoint(point_3f.AsPointF());
 }
 
 void RootWindow::ConvertPointFromHost(gfx::Point* point) const {
   gfx::Point3F point_3f(*point);
-  GetInverseRootTransform().TransformPoint(point_3f);
+  GetInverseRootTransform().TransformPoint(&point_3f);
   *point = gfx::ToFlooredPoint(point_3f.AsPointF());
 }
 
 void RootWindow::ProcessedTouchEvent(ui::TouchEvent* event,
                                      Window* window,
                                      ui::EventResult result) {
   scoped_ptr<ui::GestureRecognizer::Gestures> gestures;
   gestures.reset(gesture_recognizer_->ProcessTouchEventForGesture(
       *event, result, window));
   ProcessGestures(gestures.get());
@@ skipping 776 matching lines @@
 }
 
 gfx::Transform RootWindow::GetInverseRootTransform() const {
   float scale = ui::GetDeviceScaleFactor(layer());
   gfx::Transform transform;
   transform.Scale(1.0f / scale, 1.0f / scale);
   return transformer_->GetInverseTransform() * transform;
 }
 
 }  // namespace aura