Revert of Move compositor InputHandler from RenderViewImpl to RenderWidget.

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 51 matching lines @@
   client_->SetInputHandlerManager(this);
 }
 
 InputHandlerManager::~InputHandlerManager() {
   client_->SetInputHandlerManager(nullptr);
 }
 
 void InputHandlerManager::AddInputHandler(
     int routing_id,
     const base::WeakPtr<cc::InputHandler>& input_handler,
-    const base::WeakPtr<RenderWidget>& render_widget,
+    const base::WeakPtr<RenderViewImpl>& render_view_impl,
     bool enable_smooth_scrolling) {
   if (task_runner_->BelongsToCurrentThread()) {
     AddInputHandlerOnCompositorThread(
         routing_id, base::ThreadTaskRunnerHandle::Get(), input_handler,
-        render_widget, enable_smooth_scrolling);
+        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_widget, enable_smooth_scrolling));
+                   render_view_impl, enable_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<RenderWidget>& render_widget,
+    const base::WeakPtr<RenderViewImpl>& render_view_impl,
     bool enable_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");
   std::unique_ptr<InputHandlerWrapper> wrapper(
       new InputHandlerWrapper(this, routing_id, main_task_runner, input_handler,
-                              render_widget, enable_smooth_scrolling));
+                              render_view_impl, enable_smooth_scrolling));
   client_->RegisterRoutingID(routing_id);
   if (synchronous_handler_proxy_client_) {
     synchronous_handler_proxy_client_->DidAddSynchronousHandlerProxy(
         routing_id, wrapper->input_handler_proxy());
   }
   input_handlers_[routing_id] = std::move(wrapper);
 }
 
 void InputHandlerManager::RemoveInputHandler(int routing_id) {
   DCHECK(task_runner_->BelongsToCurrentThread());
@@ skipping 158 matching lines @@
 void InputHandlerManager::DispatchNonBlockingEventToMainThread(
     int routing_id,
     blink::WebScopedInputEvent event,
     const ui::LatencyInfo& latency_info) {
   DCHECK(task_runner_->BelongsToCurrentThread());
   client_->DispatchNonBlockingEventToMainThread(routing_id, std::move(event),
                                                 latency_info);
 }
 
 }  // namespace content