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

content/browser/renderer_host/input/touchscreen_tap_suppression_controller_stub.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 "content/browser/renderer_host/input/touchscreen_tap_suppression_controller.h"
-
-#include "content/browser/renderer_host/input/tap_suppression_controller.h"
-
-// This is the stub implementation of TouchscreenTapSuppressionController which
-// is used on platforms that do not need tap suppression for touchscreen.
-
-namespace content {
-
-TouchscreenTapSuppressionController::TouchscreenTapSuppressionController(
-    GestureEventFilter* /*gef*/)
-    : gesture_event_filter_(NULL) {}
-
-TouchscreenTapSuppressionController::~TouchscreenTapSuppressionController() {}
-
-void TouchscreenTapSuppressionController::GestureFlingCancel() {}
-
-void TouchscreenTapSuppressionController::GestureFlingCancelAck(
-    bool /*processed*/) {
-}
-
-bool TouchscreenTapSuppressionController::ShouldDeferGestureTapDown(
-    const GestureEventWithLatencyInfo& /*event*/) {
-  return false;
-}
-
-bool TouchscreenTapSuppressionController::ShouldSuppressGestureTap() {
-  return false;
-}
-
-bool TouchscreenTapSuppressionController::ShouldSuppressGestureTapCancel() {
-  return false;
-}
-
-int TouchscreenTapSuppressionController::MaxCancelToDownTimeInMs() {
-  return 0;
-}
-
-int TouchscreenTapSuppressionController::MaxTapGapTimeInMs() {
-  return 0;
-}
-
-void TouchscreenTapSuppressionController::DropStashedTapDown() {}
-
-void TouchscreenTapSuppressionController::ForwardStashedTapDown() {}
-
-}  // namespace content