Add method to TouchSelectionController to check if a handle is currently being

ui/views/touchui/touch_selection_controller_impl.h

 // Copyright (c) 2013 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_UI_VIEWS_TOUCHUI_TOUCH_SELECTION_CONTROLLER_IMPL_H_
 #define UI_UI_VIEWS_TOUCHUI_TOUCH_SELECTION_CONTROLLER_IMPL_H_
 
 #include "base/timer.h"
 #include "ui/base/touch/touch_editing_controller.h"
 #include "ui/gfx/point.h"
@@ skipping 11 matching lines @@
       public WidgetObserver {
  public:
   // Use TextSelectionController::create().
   explicit TouchSelectionControllerImpl(
       ui::TouchEditable* client_view);
 
   virtual ~TouchSelectionControllerImpl();
 
   // TextSelectionController.
   virtual void SelectionChanged() OVERRIDE;
+  virtual bool IsHandleDragInProgress() OVERRIDE;
 
  private:
   friend class TouchSelectionControllerImplTest;
   class EditingHandleView;
 
   void SetDraggingHandle(EditingHandleView* handle);
 
   // Callback to inform the client view that the selection handle has been
   // dragged, hence selection may need to be updated.
   void SelectionHandleDragged(const gfx::Point& drag_pos);
@@ skipping 58 matching lines @@
   ViewsTouchSelectionControllerFactory();
 
   // Overridden from ui::TouchSelectionControllerFactory.
   virtual ui::TouchSelectionController* create(
       ui::TouchEditable* client_view) OVERRIDE;
 };
 
 }  // namespace views
 
 #endif  // UI_UI_VIEWS_TOUCHUI_TOUCH_SELECTION_CONTROLLER_IMPL_H_