Removes mouse listeners from UserInputMonitor.

media/base/user_input_monitor.h

Index: media/base/user_input_monitor.h
diff --git a/media/base/user_input_monitor.h b/media/base/user_input_monitor.h
index 4a8777dc6c336240917a735a770c80129284159c..dad5add72a387c14faf895ea2dd42a34330205c6 100644
--- a/media/base/user_input_monitor.h
+++ b/media/base/user_input_monitor.h
@@ -28,18 +28,6 @@ namespace media {
 // added.
 class MEDIA_EXPORT UserInputMonitor {
  public:
-  // The interface to receive mouse movement events.
-  class MEDIA_EXPORT MouseEventListener {
-   public:
-    // |position| is the new mouse position.
-    virtual void OnMouseMoved(const SkIPoint& position) = 0;
-
-   protected:
-    virtual ~MouseEventListener() {}
-  };
-  typedef base::ObserverListThreadSafe<UserInputMonitor::MouseEventListener>
-      MouseListenerList;
-
   UserInputMonitor();
   virtual ~UserInputMonitor();
 
@@ -50,12 +38,6 @@ class MEDIA_EXPORT UserInputMonitor {
       const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner,
       const scoped_refptr<base::SingleThreadTaskRunner>& ui_task_runner);
 
-  // The same |listener| should only be added once.
-  // The clients should make sure to call Remove*Listener before |listener| is
-  // destroyed.
-  void AddMouseListener(MouseEventListener* listener);
-  void RemoveMouseListener(MouseEventListener* listener);
-
   // A caller must call EnableKeyPressMonitoring and
   // DisableKeyPressMonitoring in pair.
   void EnableKeyPressMonitoring();
@@ -69,21 +51,12 @@ class MEDIA_EXPORT UserInputMonitor {
   // any assumption on the initial value.
   virtual size_t GetKeyPressCount() const = 0;
 
- protected:
-  scoped_refptr<MouseListenerList> mouse_listeners() {
-    return mouse_listeners_;
-  }
-
  private:
   virtual void StartKeyboardMonitoring() = 0;
   virtual void StopKeyboardMonitoring() = 0;
-  virtual void StartMouseMonitoring() = 0;
-  virtual void StopMouseMonitoring() = 0;
 
   base::Lock lock_;
   size_t key_press_counter_references_;
-  size_t mouse_listeners_count_;
-  scoped_refptr<MouseListenerList> mouse_listeners_;
 
   DISALLOW_COPY_AND_ASSIGN(UserInputMonitor);
 };