Remove GestureEventFilter and clean up related bits assuming that we turn on

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/input/gesture_event_filter.h"
-#include "content/browser/renderer_host/input/tap_suppression_controller_client.h"
-
-namespace content {
-
-class GestureEventFilter;
-class TapSuppressionController;
-
-// Controls the suppression of touchscreen taps immediately following the
-// dispatch of a GestureFlingCancel event.
-class TouchscreenTapSuppressionController
-    : public TapSuppressionControllerClient {
- public:
-  explicit TouchscreenTapSuppressionController(GestureEventFilter* gef);
-  virtual ~TouchscreenTapSuppressionController();
-
-  // Should be called on arrival of GestureFlingCancel events.
-  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 GestureTapDown events. Returns true if the
-  // caller should stop normal handling of the GestureTapDown. In this case, the
-  // caller is responsible for saving the event for later use, if needed.
-  bool ShouldDeferGestureTapDown(const GestureEventWithLatencyInfo& event);
-
-  // Should be called on arrival of GestureTap events. Returns true if the
-  // caller should stop normal handling of the GestureTap.
-  bool ShouldSuppressGestureTap();
-
-  // Should be called on arrival of GestureTapCancel events. Returns true if the
-  // caller should stop normal handling of the GestureTapCancel.
-  bool ShouldSuppressGestureTapCancel();
-
- private:
-  // TapSuppressionControllerClient implementation.
-  virtual int MaxCancelToDownTimeInMs() OVERRIDE;
-  virtual int MaxTapGapTimeInMs() OVERRIDE;
-  virtual void DropStashedTapDown() OVERRIDE;
-  virtual void ForwardStashedTapDown() OVERRIDE;
-
-  GestureEventFilter* gesture_event_filter_;
-  GestureEventWithLatencyInfo stashed_tap_down_;
-
-  // The core controller of tap suppression.
-  scoped_ptr<TapSuppressionController> controller_;
-
-  DISALLOW_COPY_AND_ASSIGN(TouchscreenTapSuppressionController);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCHSCREEN_TAP_SUPPRESSION_CONTROLLER_H_