Explicit interface for synchronous InputHandlerProxy input handling

content/renderer/gpu/input_handler_proxy.cc

 // Copyright (c) 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/gpu/input_handler_proxy.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "content/renderer/gpu/input_handler_proxy_client.h"
 #include "third_party/WebKit/public/platform/Platform.h"
@@ skipping 28 matching lines @@
   input_handler_ = NULL;
   DCHECK(client_);
   client_->WillShutdown();
 }
 
 void InputHandlerProxy::SetClient(InputHandlerProxyClient* client) {
   DCHECK(!client_ || !client);
   client_ = client;
 }
 
-void InputHandlerProxy::HandleInputEvent(const WebInputEvent& event) {
+InputHandlerProxy::EventDisposition InputHandlerProxy::HandleInputEvent(
+    const WebInputEvent& event) {
   DCHECK(client_);
   DCHECK(input_handler_);
 
   InputHandlerProxy::EventDisposition disposition =
       HandleInputEventInternal(event);
-  switch (disposition) {
-    case DidHandle:
-      client_->DidHandleInputEvent();
-      break;
-    case DidNotHandle:
-      client_->DidNotHandleInputEvent(true /* send_to_widget */);
-      break;
-    case DropEvent:
-      client_->DidNotHandleInputEvent(false /* send_to_widget */);
-      break;
-  }
   if (event.modifiers & WebInputEvent::IsLastInputEventForCurrentVSync) {
     input_handler_->DidReceiveLastInputEventForBeginFrame(
         base::TimeTicks::FromInternalValue(event.timeStampSeconds *
                                            base::Time::kMicrosecondsPerSecond));
   }
+  return disposition;
 }
 
 InputHandlerProxy::EventDisposition
 InputHandlerProxy::HandleInputEventInternal(const WebInputEvent& event) {
   if (event.type == WebInputEvent::MouseWheel) {
     const WebMouseWheelEvent& wheel_event =
         *static_cast<const WebMouseWheelEvent*>(&event);
     if (wheel_event.scrollByPage) {
       // TODO(jamesr): We don't properly handle scroll by page in the compositor
       // thread, so punt it to the main thread. http://crbug.com/236639
@@ skipping 321 matching lines @@
   TRACE_EVENT2("renderer",
                "InputHandlerProxy::notifyCurrentFlingVelocity",
                "vx",
                velocity.width,
                "vy",
                velocity.height);
   input_handler_->NotifyCurrentFlingVelocity(ToClientScrollIncrement(velocity));
 }
 
 }  // namespace content