Send input event's LatencyInfo back from renderer to browser when acked

content/browser/renderer_host/input/immediate_input_router_unittest.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 "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/renderer_host/input/gesture_event_filter.h"
 #include "content/browser/renderer_host/input/immediate_input_router.h"
 #include "content/browser/renderer_host/input/input_router_client.h"
@@ skipping 344 matching lines @@
 
     input_router_.reset();
     client_.reset();
     process_.reset();
     browser_context_.reset();
   }
 
   void SendInputEventACK(WebInputEvent::Type type,
                          InputEventAckState ack_result) {
     scoped_ptr<IPC::Message> response(
-        new InputHostMsg_HandleInputEvent_ACK(0, type, ack_result));
+        new InputHostMsg_HandleInputEvent_ACK(0, type, ack_result,
+                                              ui::LatencyInfo()));
     input_router_->OnMessageReceived(*response);
   }
 
   void SimulateKeyboardEvent(WebInputEvent::Type type) {
     NativeWebKeyboardEvent key_event;
     key_event.type = type;
     key_event.windowsKeyCode = ui::VKEY_L;  // non-null made up value.
     input_router_->SendKeyboardEvent(key_event, ui::LatencyInfo());
     client_->ExpectSendCalled(true);
     EXPECT_EQ(type, client_->sent_key_event().type);
@@ skipping 1782 matching lines @@
   EXPECT_EQ(1U, process_->sink().message_count());
   EXPECT_TRUE(process_->sink().GetUniqueMessageMatching(
                   InputMsg_HandleInputEvent::ID));
   process_->sink().ClearMessages();
 
   // Check that the correct unhandled wheel event was received.
   EXPECT_EQ(client_->acked_wheel_event().deltaY, -5);
 }
 
 }  // namespace content