gfx::Transform API clean-up

ash/magnifier/magnification_controller.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 "ash/magnifier/magnification_controller.h"
 
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ui/aura/client/cursor_client.h"
@@ skipping 189 matching lines @@
   }
 
   origin_.set_x(x);
   origin_.set_y(y);
   scale_ = scale;
 
   // Creates transform matrix.
   gfx::Transform transform;
   // Flips the signs intentionally to convert them from the position of the
   // magnification window.
-  transform.ConcatTranslate(-origin_.x(), -origin_.y());
-  transform.ConcatScale(scale_, scale_);
+  transform.Scale(scale_, scale_);
+  transform.Translate(-origin_.x(), -origin_.y());
 
   ui::ScopedLayerAnimationSettings settings(
       root_window_->layer()->GetAnimator());
   settings.AddObserver(this);
   settings.SetPreemptionStrategy(
       ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
   settings.SetTweenType(ui::Tween::EASE_OUT);
   settings.SetTransitionDuration(
       base::TimeDelta::FromMilliseconds(animate ? 100 : 0));
 
@@ skipping 282 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // MagnificationController:
 
 // static
 MagnificationController* MagnificationController::CreateInstance() {
   return new MagnificationControllerImpl();
 }
 
 }  // namespace ash