Remove unused field.

ui/compositor/layer_animator_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_animator.h"
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/stringprintf.h"
@@ skipping 94 matching lines @@
       LayerAnimationSequence* sequence) OVERRIDE {
     animator_->StopAnimating();
   }
 
   virtual void OnLayerAnimationScheduled(
       LayerAnimationSequence* sequence) OVERRIDE {
   }
 
  private:
   LayerAnimator* animator_;
-  LayerAnimationSequence* sequence_;
 
   DISALLOW_COPY_AND_ASSIGN(DeletingLayerAnimationObserver);
 };
 
 class TestLayerAnimator : public LayerAnimator {
  public:
   TestLayerAnimator() : LayerAnimator(base::TimeDelta::FromSeconds(0)) {}
 
  protected:
   virtual ~TestLayerAnimator() {}
@@ skipping 2244 matching lines @@
 
   settings.SetPreemptionStrategy(
       LayerAnimator::ENQUEUE_NEW_ANIMATION);
   settings.SetTransitionDuration(base::TimeDelta());
   animator->SetOpacity(magic_opacity);
 
   EXPECT_EQ(start_opacity, delegate.GetOpacityForAnimation());
 }
 
 }  // namespace ui