SSL Host info: Make sure that we can update certificate chains in

net/http/disk_cache_based_ssl_host_info.h

Index: net/http/disk_cache_based_ssl_host_info.h
===================================================================
--- net/http/disk_cache_based_ssl_host_info.h	(revision 111204)
+++ net/http/disk_cache_based_ssl_host_info.h	(working copy)
@@ -109,6 +109,7 @@
   CallbackImpl* callback_;
   State state_;
   bool ready_;
+  bool found_entry_;

[wtc, 2011/11/30 00:22:09]

The way you use found_entry_ is quite tricky.  It would be
nice to document it somewhere.

Also, it seems better to change the
  CREATE
  CREATE_COMPLETE
states to
  CREATE_OR_OPEN
  CREATE_OR_OPEN_COMPLETE
states, and check found_entry_ just in DoCreateOrOpen.
This seems easier to understand that diverging the state
transitions based on found_entry_ for the Persist sequence.

   std::string new_data_;
   const std::string hostname_;
   HttpCache* const http_cache_;