Revert of Consolidate all touch/gesture related constants in content

content/browser/renderer_host/input/input_router_config_helper.cc

-// Copyright 2014 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/input_router_config_helper.h"
-
-#include "base/command_line.h"
-#include "content/public/common/content_switches.h"
-#include "ui/events/gesture_detection/gesture_detector.h"
-
-#if defined(USE_AURA)
-#include "ui/events/gestures/gesture_configuration.h"
-#elif defined(OS_ANDROID)
-#include "ui/gfx/android/view_configuration.h"
-#include "ui/gfx/screen.h"
-#endif
-
-namespace content {
-namespace {
-
-#if defined(USE_AURA)
-
-GestureEventQueue::Config GetGestureEventQueueConfig() {
-  GestureEventQueue::Config config;
-
-#if defined(OS_CHROMEOS)
-  // Default debouncing interval duration on ChromeOS: if a scroll is in
-  // progress, non-scroll events during this interval are deferred to either its
-  // end or discarded on receipt of another GestureScrollUpdate.
-  // TODO(jdduke): Disable and remove entirely when issues with spurious
-  // scroll end detection on the Pixel are resolved, crbug.com/353702.
-  const int kDebouncingIntervalTimeMs = 30;
-  config.debounce_interval =
-      base::TimeDelta::FromMilliseconds(kDebouncingIntervalTimeMs);
-#endif
-
-  config.touchscreen_tap_suppression_config.enabled = true;
-  config.touchscreen_tap_suppression_config.max_cancel_to_down_time =
-      base::TimeDelta::FromMilliseconds(
-          ui::GestureConfiguration::fling_max_cancel_to_down_time_in_ms());
-
-  config.touchscreen_tap_suppression_config.max_tap_gap_time =
-      base::TimeDelta::FromMilliseconds(static_cast<int>(
-          ui::GestureConfiguration::semi_long_press_time_in_seconds() * 1000));
-
-  config.touchpad_tap_suppression_config.enabled = true;
-  config.touchpad_tap_suppression_config.max_cancel_to_down_time =
-      base::TimeDelta::FromMilliseconds(
-          ui::GestureConfiguration::fling_max_cancel_to_down_time_in_ms());
-
-  config.touchpad_tap_suppression_config.max_tap_gap_time =
-      base::TimeDelta::FromMilliseconds(static_cast<int>(
-          ui::GestureConfiguration::fling_max_tap_gap_time_in_ms() * 1000));
-
-  return config;
-}
-
-TouchEventQueue::Config GetTouchEventQueueConfig() {
-  TouchEventQueue::Config config;
-
-  config.touchmove_slop_suppression_length_dips =
-      ui::GestureConfiguration::max_touch_move_in_pixels_for_click();
-
-  return config;
-}
-
-#elif defined(OS_ANDROID)
-
-// Default time allowance for the touch ack delay before the touch sequence is
-// cancelled.
-const int kTouchAckTimeoutDelayMs = 200;
-
-GestureEventQueue::Config GetGestureEventQueueConfig() {
-  GestureEventQueue::Config config;
-
-  config.touchscreen_tap_suppression_config.enabled = true;
-  config.touchscreen_tap_suppression_config.max_cancel_to_down_time =
-      base::TimeDelta::FromMilliseconds(
-          gfx::ViewConfiguration::GetTapTimeoutInMs());
-  config.touchscreen_tap_suppression_config.max_tap_gap_time =
-      base::TimeDelta::FromMilliseconds(
-          gfx::ViewConfiguration::GetLongPressTimeoutInMs());
-
-  return config;
-}
-
-TouchEventQueue::Config GetTouchEventQueueConfig() {
-  TouchEventQueue::Config config;
-
-  config.touch_ack_timeout_delay =
-      base::TimeDelta::FromMilliseconds(kTouchAckTimeoutDelayMs);
-  config.touch_ack_timeout_supported = true;
-
-  const double touch_slop_length_pixels =
-      static_cast<double>(gfx::ViewConfiguration::GetTouchSlopInPixels());
-  const double device_scale_factor =
-      gfx::Screen::GetNativeScreen()->GetPrimaryDisplay().device_scale_factor();
-  config.touchmove_slop_suppression_length_dips =
-      touch_slop_length_pixels / device_scale_factor;
-
-  return config;
-}
-
-#else
-
-GestureEventQueue::Config GetGestureEventQueueConfig() {
-  return GestureEventQueue::Config();
-}
-
-TouchEventQueue::Config GetTouchEventQueueConfig() {
-  TouchEventQueue::Config config;
-  config.touchmove_slop_suppression_length_dips =
-      ui::GestureDetector::Config().touch_slop;
-  return config;
-}
-
-#endif
-
-TouchEventQueue::TouchScrollingMode GetTouchScrollingMode() {
-  std::string modeString =
-      CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
-          switches::kTouchScrollingMode);
-  if (modeString == switches::kTouchScrollingModeAsyncTouchmove)
-    return TouchEventQueue::TOUCH_SCROLLING_MODE_ASYNC_TOUCHMOVE;
-  if (modeString == switches::kTouchScrollingModeSyncTouchmove)
-    return TouchEventQueue::TOUCH_SCROLLING_MODE_SYNC_TOUCHMOVE;
-  if (modeString == switches::kTouchScrollingModeTouchcancel)
-    return TouchEventQueue::TOUCH_SCROLLING_MODE_TOUCHCANCEL;
-  if (modeString != "")
-    LOG(ERROR) << "Invalid --touch-scrolling-mode option: " << modeString;
-  return TouchEventQueue::TOUCH_SCROLLING_MODE_DEFAULT;
-}
-
-}  // namespace
-
-InputRouterImpl::Config GetInputRouterConfigForPlatform() {
-  InputRouterImpl::Config config;
-  config.gesture_config = GetGestureEventQueueConfig();
-  config.touch_config = GetTouchEventQueueConfig();
-  config.touch_config.touch_scrolling_mode = GetTouchScrollingMode();
-  return config;
-}
-
-}  // namespace content