Migrate ui::Transform to gfx::Transform

ui/compositor/layer_unittest.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 "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
@@ skipping 892 matching lines @@
   EXPECT_TRUE(observer.notified());
 
   // So should setting the opacity back.
   observer.Reset();
   l2->SetOpacity(1.0f);
   RunPendingMessages();
   EXPECT_TRUE(observer.notified());
 
   // Setting the transform of a layer should alert the observers.
   observer.Reset();
-  Transform transform;
+  gfx::Transform transform;
   transform.ConcatTranslate(-200, -200);
   transform.ConcatRotate(90.0f);
   transform.ConcatTranslate(200, 200);
   l2->SetTransform(transform);
   RunPendingMessages();
   EXPECT_TRUE(observer.notified());
 
   // A change resulting in an aborted swap buffer should alert the observer
   // and also signal an abort.
   observer.Reset();
@@ skipping 376 matching lines @@
 
   // Resize layer.
   child->SetBounds(gfx::Rect(200, 200, 400, 400));
   child->SetVisible(true);
   EXPECT_TRUE(schedule_draw_invoked_);
   DrawTree(root.get());
   EXPECT_TRUE(delegate.painted());
 }
 
 }  // namespace ui