Reports Prerender and Profile Total Bytes

chrome/browser/prerender/prerender_histograms.h

Index: chrome/browser/prerender/prerender_histograms.h
diff --git a/chrome/browser/prerender/prerender_histograms.h b/chrome/browser/prerender/prerender_histograms.h
index 0a9b8ee554a4362ce9dc67d1b22a7cc0a3f255ce..23a7867c9a6d35ef6d1ab095b3e08e0d27e58525 100644
--- a/chrome/browser/prerender/prerender_histograms.h
+++ b/chrome/browser/prerender/prerender_histograms.h
@@ -109,6 +109,11 @@ class PrerenderHistograms {
                                         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;
 
@@ -149,6 +154,10 @@ class PrerenderHistograms {
   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);
 };