Remove touch-scrolling-mode flag

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"
 
@@ skipping 77 matching lines @@
 GestureEventQueue::Config GetGestureEventQueueConfig() {
   return GestureEventQueue::Config();
 }
 
 TouchEventQueue::Config GetTouchEventQueueConfig() {
   return TouchEventQueue::Config();
 }
 
 #endif
 
-TouchEventQueue::TouchScrollingMode GetTouchScrollingMode() {
-  std::string modeString =
-      base::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.empty())
-    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