Support InputRouter recycling

content/browser/renderer_host/input/touchscreen_tap_suppression_controller.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCHSCREEN_TAP_SUPPRESSION_CONTROLLER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCHSCREEN_TAP_SUPPRESSION_CONTROLLER_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/renderer_host/event_with_latency_info.h"
 #include "content/browser/renderer_host/input/tap_suppression_controller.h"
@@ skipping 17 matching lines @@
   void GestureFlingCancel();
 
   // Should be called on arrival of ACK for a GestureFlingCancel event.
   // |processed| is true if the GestureFlingCancel successfully stopped a fling.
   void GestureFlingCancelAck(bool processed);
 
   // Should be called on arrival of any tap-related events. Returns true if the
   // caller should stop normal handling of the gesture.
   bool FilterTapEvent(const GestureEventWithLatencyInfo& event);
 
+  // Reset the state of tap suppression.
+  void Reset();
+
  private:
   // TapSuppressionControllerClient implementation.
   virtual void DropStashedTapDown() override;
   virtual void ForwardStashedTapDown() override;
 
   GestureEventQueue* gesture_event_queue_;
 
   typedef scoped_ptr<GestureEventWithLatencyInfo> ScopedGestureEvent;
   ScopedGestureEvent stashed_tap_down_;
   ScopedGestureEvent stashed_show_press_;
 
   // The core controller of tap suppression.
   TapSuppressionController controller_;
 
   DISALLOW_COPY_AND_ASSIGN(TouchscreenTapSuppressionController);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCHSCREEN_TAP_SUPPRESSION_CONTROLLER_H_