Reports Prerender and Profile Total Bytes

chrome/browser/prerender/prerender_histograms.h

 // 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.
 
 #ifndef CHROME_BROWSER_PRERENDER_PRERENDER_HISTOGRAMS_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_HISTOGRAMS_H_
 
 #include <string>
 
 #include "base/time/time.h"
@@ skipping 91 matching lines @@
   // Record a prerender cookie status bitmap. Must be in the range
   // [0, PrerenderContents::kNumCookieStatuses).
   void RecordCookieStatus(Origin origin,
                           uint8 experiment_id,
                           int cookie_status) const;
 
   void RecordPrerenderPageVisitedStatus(Origin origin,
                                         uint8 experiment_id,
                                         bool visited_before) const;
 
+  // Record the bytes in the prerender, whether it was used or not, and the
+  // total number of bytes fetched for this profile since the last call to
+  // RecordBytes.
+  void RecordBytes(bool used, int64 prerender_bytes, int64 profile_bytes);

[tburkard, 2014/02/12 19:54:56]

nit: Perhaps a more descriptive name, like RecordNetworkBytes

[jkarlin, 2014/02/13 13:24:49]

Done.

+
  private:
   base::TimeTicks GetCurrentTimeTicks() const;
 
   // Returns the time elapsed since the last prerender happened.
   base::TimeDelta GetTimeSinceLastPrerender() const;
 
   // Returns whether the PrerenderManager is currently within the prerender
   // window - effectively, up to 30 seconds after a prerender tag has been
   // observed.
   bool WithinWindow() const;
@@ skipping 20 matching lines @@
   // This is used to record perceived PLT's for a certain amount of time
   // from the point that we last saw a <link rel=prerender> tag.
   base::TimeTicks last_prerender_seen_time_;
 
   // Indicates whether we have recorded page load events after the most
   // recent prerender.  These must be initialized to true, so that we don't
   // start recording events before the first prerender occurs.
   bool seen_any_pageload_;
   bool seen_pageload_started_after_prerender_;
 
+  // The number of network bytes transferred for this profile that was
+  // previously reported to UMA.
+  int64 last_profile_network_bytes_;
+
   DISALLOW_COPY_AND_ASSIGN(PrerenderHistograms);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_HISTOGRAMS_H_