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

content/browser/renderer_host/render_widget_host_view_mac_unittest.mm

 // Copyright (c) 2012 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/render_widget_host_view_mac.h"
 
 #include "base/mac/mac_util.h"
 #include "base/mac/scoped_nsautorelease_pool.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/browser_thread_impl.h"
@@ skipping 693 matching lines @@
   RenderWidgetHostViewMac* view = static_cast<RenderWidgetHostViewMac*>(
       RenderWidgetHostView::CreateViewForWidget(host));
 
   // Send an initial wheel event with NSEventPhaseBegan to the view.
   NSEvent* event1 = MockScrollWheelEventWithPhase(@selector(phaseBegan), 0);
   [view->cocoa_view() scrollWheel:event1];
   ASSERT_EQ(1U, process_host->sink().message_count());
 
   // Send an ACK for the first wheel event, so that the queue will be flushed.
   scoped_ptr<IPC::Message> response(new InputHostMsg_HandleInputEvent_ACK(
-      0, WebKit::WebInputEvent::MouseWheel, INPUT_EVENT_ACK_STATE_CONSUMED));
+      0, WebKit::WebInputEvent::MouseWheel, INPUT_EVENT_ACK_STATE_CONSUMED,
+      ui::LatencyInfo()));
   host->OnMessageReceived(*response);
 
   // Post the NSEventPhaseEnded wheel event to NSApp and check whether the
   // render view receives it.
   NSEvent* event2 = MockScrollWheelEventWithPhase(@selector(phaseEnded), 0);
   [NSApp postEvent:event2 atStart:NO];
   base::MessageLoop::current()->RunUntilIdle();
   ASSERT_EQ(2U, process_host->sink().message_count());
 
   // Clean up.
@@ skipping 23 matching lines @@
   view->SetDelegate(view_delegate.get());
 
   // Send an initial wheel event for scrolling by 3 lines.
   NSEvent* event1 = MockScrollWheelEventWithPhase(@selector(phaseBegan), 3);
   [view->cocoa_view() scrollWheel:event1];
   ASSERT_EQ(1U, process_host->sink().message_count());
   process_host->sink().ClearMessages();
 
   // Indicate that the wheel event was unhandled.
   scoped_ptr<IPC::Message> response1(new InputHostMsg_HandleInputEvent_ACK(0,
-      WebKit::WebInputEvent::MouseWheel, INPUT_EVENT_ACK_STATE_NOT_CONSUMED));
+      WebKit::WebInputEvent::MouseWheel, INPUT_EVENT_ACK_STATE_NOT_CONSUMED,
+      ui::LatencyInfo()));
   host->OnMessageReceived(*response1);
 
   // Check that the view delegate got an unhandled wheel event.
   ASSERT_EQ(YES, view_delegate.get().unhandledWheelEventReceived);
   view_delegate.get().unhandledWheelEventReceived = NO;
 
   // Send another wheel event, this time for scrolling by 0 lines (empty event).
   NSEvent* event2 = MockScrollWheelEventWithPhase(@selector(phaseChanged), 0);
   [view->cocoa_view() scrollWheel:event2];
   ASSERT_EQ(1U, process_host->sink().message_count());
 
   // Indicate that the wheel event was also unhandled.
   scoped_ptr<IPC::Message> response2(new InputHostMsg_HandleInputEvent_ACK(0,
-      WebKit::WebInputEvent::MouseWheel, INPUT_EVENT_ACK_STATE_NOT_CONSUMED));
+      WebKit::WebInputEvent::MouseWheel, INPUT_EVENT_ACK_STATE_NOT_CONSUMED,
+      ui::LatencyInfo()));
   host->OnMessageReceived(*response2);
 
   // Check that the view delegate ignored the empty unhandled wheel event.
   ASSERT_EQ(NO, view_delegate.get().unhandledWheelEventReceived);
 
   // Clean up.
   host->Shutdown();
 }
 
 }  // namespace content