content/renderer/stats_collection_observer.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/renderer/stats_collection_observer.h"
   6
   7 #include "base/time/time.h"
   8 #include "content/renderer/render_view_impl.h"
   9
  10 namespace content {
  11
  12 StatsCollectionObserver::StatsCollectionObserver(RenderViewImpl* render_view)
  13     : RenderViewObserver(render_view) {
  14 }
  15
  16 StatsCollectionObserver::~StatsCollectionObserver() {
  17 }
  18
  19 void StatsCollectionObserver::DidStartLoading() {
  20   DCHECK(start_time_.is_null());
  21   start_time_ = base::TimeTicks::Now();
  22 }
  23
  24 void StatsCollectionObserver::DidStopLoading() {
  25   DCHECK(stop_time_.is_null());
  26   stop_time_ = base::TimeTicks::Now();
  27
  28   // Stop observing so we don't get called again.
  29   RenderViewImpl* impl = static_cast<RenderViewImpl*>(render_view());
  30   impl->RemoveObserver(this);
  31 }
  32
  33 }  // namespace content