Simple Cache: Add two optional stream 2 histograms

net/disk_cache/simple/simple_synchronous_entry.h

Index: net/disk_cache/simple/simple_synchronous_entry.h
diff --git a/net/disk_cache/simple/simple_synchronous_entry.h b/net/disk_cache/simple/simple_synchronous_entry.h
index 470e8e20bd8fa80bc00f4ced5724b9a8dedef01b..892c952a82e319071b66e89eab0049f6fd28a57e 100644
--- a/net/disk_cache/simple/simple_synchronous_entry.h
+++ b/net/disk_cache/simple/simple_synchronous_entry.h
@@ -250,6 +250,10 @@ class SimpleSynchronousEntry {
   // True if the corresponding stream is empty and therefore no on-disk file
   // was created to store it.
   bool empty_file_omitted_[kSimpleEntryFileCount];
+
+  // True if the entry was created, or false if it was opened.  (Used to log

[gavinp, 2013/09/24 21:15:42]

Nit: no need for the parens, and only one space after a period please.

[Deprecated (see juliatuttle), 2013/09/24 23:28:53]

Done.  Everywhere in net/disk_cache/simple.

+  // SimpleCache.*.EntryCreatedWithStream2Omitted only for created entries.)
+  bool files_created_;
 };
 
 }  // namespace disk_cache