Remove enable/disable wheel gestures setting.

content/renderer/input/input_handler_manager.cc

Index: content/renderer/input/input_handler_manager.cc
diff --git a/content/renderer/input/input_handler_manager.cc b/content/renderer/input/input_handler_manager.cc
index b6deb4c0b187c2064f916160e10aa46aff04cebb..faeb8adc352d80b86f8c1bb6fee2efa2ad6dff5e 100644
--- a/content/renderer/input/input_handler_manager.cc
+++ b/content/renderer/input/input_handler_manager.cc
@@ -67,20 +67,18 @@ void InputHandlerManager::AddInputHandler(
     int routing_id,
     const base::WeakPtr<cc::InputHandler>& input_handler,
     const base::WeakPtr<RenderViewImpl>& render_view_impl,
-    bool enable_smooth_scrolling,
-    bool enable_wheel_gestures) {
+    bool enable_smooth_scrolling) {
   if (task_runner_->BelongsToCurrentThread()) {
     AddInputHandlerOnCompositorThread(
         routing_id, base::ThreadTaskRunnerHandle::Get(), input_handler,
-        render_view_impl, enable_smooth_scrolling, enable_wheel_gestures);
+        render_view_impl, enable_smooth_scrolling);
   } else {
     task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&InputHandlerManager::AddInputHandlerOnCompositorThread,
                    base::Unretained(this), routing_id,
                    base::ThreadTaskRunnerHandle::Get(), input_handler,
-                   render_view_impl, enable_smooth_scrolling,
-                   enable_wheel_gestures));
+                   render_view_impl, enable_smooth_scrolling));
   }
 }
 
@@ -89,8 +87,7 @@ void InputHandlerManager::AddInputHandlerOnCompositorThread(
     const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner,
     const base::WeakPtr<cc::InputHandler>& input_handler,
     const base::WeakPtr<RenderViewImpl>& render_view_impl,
-    bool enable_smooth_scrolling,
-    bool enable_wheel_gestures) {
+    bool enable_smooth_scrolling) {
   DCHECK(task_runner_->BelongsToCurrentThread());
 
   // The handler could be gone by this point if the compositor has shut down.
@@ -104,9 +101,9 @@ void InputHandlerManager::AddInputHandlerOnCompositorThread(
   TRACE_EVENT1("input",
       "InputHandlerManager::AddInputHandlerOnCompositorThread",
       "result", "AddingRoute");
-  std::unique_ptr<InputHandlerWrapper> wrapper(new InputHandlerWrapper(
-      this, routing_id, main_task_runner, input_handler, render_view_impl,
-      enable_smooth_scrolling, enable_wheel_gestures));
+  std::unique_ptr<InputHandlerWrapper> wrapper(
+      new InputHandlerWrapper(this, routing_id, main_task_runner, input_handler,
+                              render_view_impl, enable_smooth_scrolling));
   client_->DidAddInputHandler(routing_id);
   if (synchronous_handler_proxy_client_) {
     synchronous_handler_proxy_client_->DidAddSynchronousHandlerProxy(