Plumb LatencyInfo through aura.

content/browser/renderer_host/render_widget_host_impl.cc

 // 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_impl.h"
 
 #include <math.h>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 2486 matching lines @@
   OnRenderAutoResized(new_size);
 }
 
 void RenderWidgetHostImpl::DetachDelegate() {
   delegate_ = NULL;
 }
 
 void RenderWidgetHostImpl::FrameSwapped(const ui::LatencyInfo& latency_info) {
 }
 
+// static
+void RenderWidgetHostImpl::CompositorFrameDrawn(
+    const ui::LatencyInfo& latency_info) {
+  for (ui::LatencyInfo::LatencyMap::const_iterator b =
+           latency_info.latency_components.begin();
+       b != latency_info.latency_components.end();
+       ++b) {
+    if (b->first.first != ui::INPUT_EVENT_LATENCY_COMPONENT)
+      continue;
+    // Matches with GetLatencyComponentId
+    int routing_id = b->first.second & 0xffffffff;
+    int process_id = (b->first.second >> 32) & 0xffffffff;
+    RenderProcessHost* host = RenderProcessHost::FromID(process_id);
+    if (!host)
+      continue;
+    RenderWidgetHost* rwh = host->GetRenderWidgetHostByID(routing_id);
+    if (!rwh)
+      continue;
+    RenderWidgetHostImpl::From(rwh)->FrameSwapped(latency_info);
+  }
+}
+
 }  // namespace content