gfx::Transform API clean-up

ui/compositor/layer_animation_sequence_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 "ui/compositor/layer_animation_sequence.h"
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
@@ skipping 60 matching lines @@
       LayerAnimationElement::CreateOpacityElement(target_opacity, delta));
 
   // Pause bounds for a second.
   LayerAnimationElement::AnimatableProperties properties;
   properties.insert(LayerAnimationElement::BOUNDS);
 
   sequence.AddElement(
       LayerAnimationElement::CreatePauseElement(properties, delta));
 
   gfx::Transform start_transform, target_transform, middle_transform;
-  start_transform.SetRotate(-90);
-  target_transform.SetRotate(90);
+  start_transform.Rotate(-30.0);
+  target_transform.Rotate(30.0);
 
   sequence.AddElement(
       LayerAnimationElement::CreateTransformElement(target_transform, delta));
 
   for (int i = 0; i < 2; ++i) {
     delegate.SetOpacityFromAnimation(start_opacity);
     delegate.SetTransformFromAnimation(start_transform);
 
     sequence.Progress(base::TimeDelta::FromMilliseconds(0), &delegate);
     EXPECT_FLOAT_EQ(start_opacity, delegate.GetOpacityForAnimation());
@@ skipping 95 matching lines @@
     EXPECT_TRUE(!observer.last_ended_sequence());
     sequence.Progress(delta, &delegate);
     EXPECT_EQ(observer.last_ended_sequence(), &sequence);
     sequence.RemoveObserver(&observer);
   }
 }
 
 } // namespace
 
 } // namespace ui