Report LatencyInfo through trace buffer

content/browser/renderer_host/compositing_iosurface_mac.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/compositing_iosurface_mac.h"
 
 #include <OpenGL/CGLRenderers.h>
 #include <OpenGL/OpenGL.h>
 
 #include "base/bind.h"
@@ skipping 479 matching lines @@
   }
 
   if (!using_core_animation) {
     CGLError cgl_error =  CGLFlushDrawable(context_->cgl_context());
     if (cgl_error != kCGLNoError) {
       LOG(ERROR) << "CGLFlushDrawable error in DrawIOSurface: " << cgl_error;
       result = false;
     }
   }
 
-  latency_info_.swap_timestamp = base::TimeTicks::HighResNow();
+  latency_info_.AddLatencyNumber(
+      ui::INPUT_EVENT_LATENCY_TERMINATED_FRAME_SWAP_COMPONENT, 0, 0);
   RenderWidgetHostImpl::CompositorFrameDrawn(latency_info_);
   latency_info_.Clear();
 
   // Try to finish previous copy requests after flush to get better pipelining.
   std::vector<base::Closure> copy_done_callbacks;
   CheckIfAllCopiesAreFinishedWithinContext(false, &copy_done_callbacks);
 
   // Check if any of the drawing calls result in an error.
   GetAndSaveGLError();
   if (gl_error_ != GL_NO_ERROR) {
@@ skipping 546 matching lines @@
 }
 
 GLenum CompositingIOSurfaceMac::GetAndSaveGLError() {
   GLenum gl_error = glGetError();
   if (gl_error_ == GL_NO_ERROR)
     gl_error_ = gl_error;
   return gl_error;
 }
 
 }  // namespace content