Smooth scroll on Windows should respect OS level animation disabling

content/renderer/input/input_handler_manager.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/renderer/input/input_handler_manager.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 44 matching lines @@
                                       base::Unretained(this)));
 }
 
 InputHandlerManager::~InputHandlerManager() {
   client_->SetBoundHandler(InputHandlerManagerClient::Handler());
 }
 
 void InputHandlerManager::AddInputHandler(
     int routing_id,
     const base::WeakPtr<cc::InputHandler>& input_handler,
-    const base::WeakPtr<RenderViewImpl>& render_view_impl) {
+    const base::WeakPtr<RenderViewImpl>& render_view_impl,
+    bool disable_smooth_scrolling) {
   if (task_runner_->BelongsToCurrentThread()) {
     AddInputHandlerOnCompositorThread(routing_id,
                                       base::ThreadTaskRunnerHandle::Get(),
-                                      input_handler, render_view_impl);
+                                      input_handler, render_view_impl,
+                                      disable_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));
+                   render_view_impl,
+                   disable_smooth_scrolling));
   }
 }
 
 void InputHandlerManager::AddInputHandlerOnCompositorThread(
     int routing_id,
     const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner,
     const base::WeakPtr<cc::InputHandler>& input_handler,
-    const base::WeakPtr<RenderViewImpl>& render_view_impl) {
+    const base::WeakPtr<RenderViewImpl>& render_view_impl,
+    bool disable_smooth_scrolling) {
   DCHECK(task_runner_->BelongsToCurrentThread());
 
   // The handler could be gone by this point if the compositor has shut down.
   if (!input_handler)
     return;
 
   // The same handler may be registered for a route multiple times.
   if (input_handlers_.count(routing_id) != 0)
     return;
 
   TRACE_EVENT1("input",
       "InputHandlerManager::AddInputHandlerOnCompositorThread",
       "result", "AddingRoute");
   scoped_ptr<InputHandlerWrapper> wrapper(new InputHandlerWrapper(
-      this, routing_id, main_task_runner, input_handler, render_view_impl));
+      this, routing_id, main_task_runner, input_handler, render_view_impl,
+      disable_smooth_scrolling));
   client_->DidAddInputHandler(routing_id, wrapper->input_handler_proxy());
   input_handlers_.add(routing_id, std::move(wrapper));
 }
 
 void InputHandlerManager::RemoveInputHandler(int routing_id) {
   DCHECK(task_runner_->BelongsToCurrentThread());
   DCHECK(input_handlers_.contains(routing_id));
 
   TRACE_EVENT0("input", "InputHandlerManager::RemoveInputHandler");
 
@@ skipping 71 matching lines @@
 
 void InputHandlerManager::DidStopFlinging(int routing_id) {
   client_->DidStopFlinging(routing_id);
 }
 
 void InputHandlerManager::DidAnimateForInput() {
   renderer_scheduler_->DidAnimateForInputOnCompositorThread();
 }
 
 }  // namespace content