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

content/browser/renderer_host/input/touchpad_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_TOUCHPAD_TAP_SUPPRESSION_CONTROLLER_H_
-#define CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCHPAD_TAP_SUPPRESSION_CONTROLLER_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "content/browser/renderer_host/input/tap_suppression_controller_client.h"
-#include "content/common/content_export.h"
-#include "content/port/browser/event_with_latency_info.h"
-#include "third_party/WebKit/public/web/WebInputEvent.h"
-
-namespace content {
-
-class TapSuppressionController;
-
-class CONTENT_EXPORT TouchpadTapSuppressionControllerClient {
- public:
-  virtual ~TouchpadTapSuppressionControllerClient() {}
-  virtual void SendMouseEventImmediately(
-      const MouseEventWithLatencyInfo& event) = 0;
-};
-
-// Controls the suppression of touchpad taps immediately following the dispatch
-// of a GestureFlingCancel event.
-class TouchpadTapSuppressionController : public TapSuppressionControllerClient {
- public:
-  // The |client| must outlive the TouchpadTapSupressionController.
-  explicit TouchpadTapSuppressionController(
-      TouchpadTapSuppressionControllerClient* client);
-  virtual ~TouchpadTapSuppressionController();
-
-  // 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 MouseDown events. Returns true if the caller
-  // should stop normal handling of the MouseDown. In this case, the caller is
-  // responsible for saving the event for later use, if needed.
-  bool ShouldDeferMouseDown(const MouseEventWithLatencyInfo& event);
-
-  // Should be called on arrival of MouseUp events. Returns true if the caller
-  // should stop normal handling of the MouseUp.
-  bool ShouldSuppressMouseUp();
-
- private:
-  friend class MockRenderWidgetHost;
-
-  // TapSuppressionControllerClient implementation.
-  virtual int MaxCancelToDownTimeInMs() OVERRIDE;
-  virtual int MaxTapGapTimeInMs() OVERRIDE;
-  virtual void DropStashedTapDown() OVERRIDE;
-  virtual void ForwardStashedTapDown() OVERRIDE;
-
-  TouchpadTapSuppressionControllerClient* client_;
-  MouseEventWithLatencyInfo stashed_mouse_down_;
-
-  // The core controller of tap suppression.
-  scoped_ptr<TapSuppressionController> controller_;
-
-  DISALLOW_COPY_AND_ASSIGN(TouchpadTapSuppressionController);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCHPAD_TAP_SUPPRESSION_CONTROLLER_H_