Update remaining files to use WeakPtr<T>::get() instead of "operator T*"

ui/compositor/layer_animator.h

 // 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.
 
 #ifndef UI_COMPOSITOR_LAYER_ANIMATOR_H_
 #define UI_COMPOSITOR_LAYER_ANIMATOR_H_
 
 #include <deque>
 #include <vector>
 
@@ skipping 191 matching lines @@
  private:
   friend class base::RefCounted<LayerAnimator>;
   friend class ScopedLayerAnimationSettings;
   friend class LayerAnimatorTestController;
 
   class RunningAnimation {
    public:
     RunningAnimation(const base::WeakPtr<LayerAnimationSequence>& sequence);
     ~RunningAnimation();
 
-    bool is_sequence_alive() const { return !!sequence_; }
+    bool is_sequence_alive() const { return !!sequence_.get(); }
     LayerAnimationSequence* sequence() const { return sequence_.get(); }
 
    private:
     base::WeakPtr<LayerAnimationSequence> sequence_;
 
     // Copy and assign are allowed.
   };
 
   typedef std::vector<RunningAnimation> RunningAnimations;
   typedef std::deque<linked_ptr<LayerAnimationSequence> > AnimationQueue;
@@ skipping 116 matching lines @@
   // Observers are notified when layer animations end, are scheduled or are
   // aborted.
   ObserverList<LayerAnimationObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerAnimator);
 };
 
 }  // namespace ui
 
 #endif  // UI_COMPOSITOR_LAYER_ANIMATOR_H_