Moves common code in ash/wm/overview to ash/common/wm/overview

ash/wm/gestures/overview_gesture_handler.cc

 // Copyright 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.
 
 #include "ash/wm/gestures/overview_gesture_handler.h"
 
+#include "ash/common/wm/overview/window_selector_controller.h"
 #include "ash/metrics/user_metrics_recorder.h"
 #include "ash/shell.h"
-#include "ash/wm/overview/window_selector_controller.h"
 #include "ui/events/event.h"
 #include "ui/events/event_constants.h"
 
 namespace ash {
 namespace {
 
 // The threshold before engaging overview on a three finger swipe on the
 // touchpad.
 const float kSwipeThresholdPixels = 300;
 
@@ skipping 37 matching lines @@
   }
 
   // Reset scroll amount on toggling.
   scroll_x_ = scroll_y_ = 0;
   shell->metrics()->RecordUserMetricsAction(UMA_TOUCHPAD_GESTURE_OVERVIEW);
   shell->window_selector_controller()->ToggleOverview();
   return true;
 }
 
 }  // namespace ash