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

content/browser/renderer_host/input/touchpad_tap_suppression_controller_aura.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/touchpad_tap_suppression_controller.h"
-
-#include "content/browser/renderer_host/input/tap_suppression_controller.h"
-#include "content/browser/renderer_host/input/tap_suppression_controller_client.h"
-#include "ui/events/gestures/gesture_configuration.h"
-
-namespace content {
-
-TouchpadTapSuppressionController::TouchpadTapSuppressionController(
-    TouchpadTapSuppressionControllerClient* client)
-    : client_(client),
-      controller_(new TapSuppressionController(this)) {
-}
-
-TouchpadTapSuppressionController::~TouchpadTapSuppressionController() {}
-
-void TouchpadTapSuppressionController::GestureFlingCancel() {
-  controller_->GestureFlingCancel();
-}
-
-void TouchpadTapSuppressionController::GestureFlingCancelAck(bool processed) {
-  controller_->GestureFlingCancelAck(processed);
-}
-
-bool TouchpadTapSuppressionController::ShouldDeferMouseDown(
-    const MouseEventWithLatencyInfo& event) {
-  bool should_defer = controller_->ShouldDeferTapDown();
-  if (should_defer)
-    stashed_mouse_down_ = event;
-  return should_defer;
-}
-
-bool TouchpadTapSuppressionController::ShouldSuppressMouseUp() {
-  return controller_->ShouldSuppressTapUp();
-}
-
-int TouchpadTapSuppressionController::MaxCancelToDownTimeInMs() {
-  return ui::GestureConfiguration::fling_max_cancel_to_down_time_in_ms();
-}
-
-int TouchpadTapSuppressionController::MaxTapGapTimeInMs() {
-  return ui::GestureConfiguration::fling_max_tap_gap_time_in_ms();
-}
-
-void TouchpadTapSuppressionController::DropStashedTapDown() {
-}
-
-void TouchpadTapSuppressionController::ForwardStashedTapDown() {
-  // Mouse downs are not handled by gesture event filter; so, they are
-  // immediately forwarded to the renderer.
-  client_->SendMouseEventImmediately(stashed_mouse_down_);
-}
-
-}  // namespace content