aura: Gesture event plumbing (skeleton).

ash/drag_drop/drag_drop_controller.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 "ash/drag_drop/drag_drop_controller.h"
 
 #include "ash/drag_drop/drag_image_view.h"
 #include "ash/shell.h"
 #include "base/message_loop.h"
 #include "ui/aura/client/drag_drop_delegate.h"
@@ skipping 162 matching lines @@
   }
   return true;
 }
 
 ui::TouchStatus DragDropController::PreHandleTouchEvent(
     aura::Window* target,
     aura::TouchEvent* event) {
   return ui::TOUCH_STATUS_UNKNOWN;
 }
 
+ui::GestureStatus DragDropController::PreHandleGestureEvent(
+    aura::Window* target,
+    aura::GestureEvent* event) {
+  return ui::GESTURE_STATUS_UNKNOWN;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // DragDropController, private:
 
 void DragDropController::OnLayerAnimationEnded(
     const ui::LayerAnimationSequence* sequence) {
   DCHECK(drag_image_.get());
   drag_image_.reset();
 }
 
 void DragDropController::OnLayerAnimationAborted(
@@ skipping 13 matching lines @@
   window->SetBounds(gfx::Rect(drag_start_location_, window->bounds().size()));
 }
 
 void DragDropController::Cleanup() {
   drag_data_ = NULL;
   drag_drop_in_progress_ = false;
 }
 
 }  // namespace internal
 }  // namespace ash