Provided batched input delivery with a BufferedInputRouter

content/browser/renderer_host/input/immediate_input_router.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/browser/renderer_host/input/immediate_input_router.h"
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "content/browser/renderer_host/input/gesture_event_filter.h"
 #include "content/browser/renderer_host/input/input_router_client.h"
@@ skipping 53 matching lines @@
     case INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS: return "NO_CONSUMER_EXISTS";
   default:
     DLOG(WARNING) << "Unhandled InputEventAckState in GetEventAckName.\n";
     break;
   }
   return "";
 }
 
 } // namespace
 
-ImmediateInputRouter::ImmediateInputRouter(
-    RenderProcessHost* process,
-    InputRouterClient* client,
-    int routing_id)
+ImmediateInputRouter::ImmediateInputRouter(RenderProcessHost* process,
+                                           InputRouterClient* client,
+                                           int routing_id)
     : process_(process),
       client_(client),
       routing_id_(routing_id),
       select_range_pending_(false),
       move_caret_pending_(false),
       mouse_move_pending_(false),
       mouse_wheel_pending_(false),
       has_touch_handler_(false),
       touch_event_queue_(new TouchEventQueue(this)),
       gesture_event_filter_(new GestureEventFilter(this)) {
   DCHECK(process);
   DCHECK(client);
 }
 
 ImmediateInputRouter::~ImmediateInputRouter() {
 }
 
+void ImmediateInputRouter::Flush() {
+  NOTREACHED() << "ImmediateInputRouter will never request a flush.";
+}
+
 bool ImmediateInputRouter::SendInput(IPC::Message* message) {
   DCHECK(IPC_MESSAGE_ID_CLASS(message->type()) == InputMsgStart);
   scoped_ptr<IPC::Message> scoped_message(message);
   switch (scoped_message->type()) {
     // Check for types that require an ACK.
     case InputMsg_SelectRange::ID:
       return SendSelectRange(scoped_message.release());
     case InputMsg_MoveCaret::ID:
       return SendMoveCaret(scoped_message.release());
     case InputMsg_HandleInputEvent::ID:
@@ skipping 445 matching lines @@
 }
 
 void ImmediateInputRouter::ProcessTouchAck(
     InputEventAckState ack_result,
     const ui::LatencyInfo& latency_info) {
   // |touch_event_queue_| will forward to OnTouchEventAck when appropriate.
   touch_event_queue_->ProcessTouchAck(ack_result, latency_info);
 }
 
 }  // namespace content