Properly handle the Module SBDatabase when it's corrupted

chrome/browser/safe_browsing/safe_browsing_database.h

 // Copyright (c) 2011 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_SAFE_BROWSING_SAFE_BROWSING_DATABASE_H_
 #define CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_DATABASE_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 309 matching lines @@
     FAILURE_IP_BLACKLIST_UPDATE_INVALID = 28,
     FAILURE_IP_BLACKLIST_DELETE = 29,
     FAILURE_UNWANTED_SOFTWARE_DATABASE_UPDATE_BEGIN = 30,
     FAILURE_UNWANTED_SOFTWARE_DATABASE_UPDATE_FINISH = 31,
     FAILURE_UNWANTED_SOFTWARE_PREFIX_SET_READ = 32,
     FAILURE_UNWANTED_SOFTWARE_PREFIX_SET_WRITE = 33,
     FAILURE_UNWANTED_SOFTWARE_PREFIX_SET_DELETE = 34,
     FAILURE_RESOURCE_BLACKLIST_UPDATE_BEGIN = 35,
     FAILURE_RESOURCE_BLACKLIST_UPDATE_FINISH = 36,
     FAILURE_RESOURCE_BLACKLIST_DELETE = 37,
+    FAILURE_MODULE_WHITELIST_DELETE = 38,

[Nathan Parker, 2016/03/17 16:46:39]

Add this to histograms.xml

[proberge, 2016/03/17 18:11:00]

Done.

 
     // Memory space for histograms is determined by the max.  ALWAYS
     // ADD NEW VALUES BEFORE THIS ONE.
     FAILURE_DATABASE_MAX
   };
 
   static void RecordFailure(FailureType failure_type);
 
  private:
   // The factory used to instantiate a SafeBrowsingDatabase object.
@@ skipping 395 matching lines @@
 
   // Used to schedule resetting the database because of corruption. This factory
   // and the WeakPtrs it issues should only be used on the database's main
   // thread.
   base::WeakPtrFactory<SafeBrowsingDatabaseNew> reset_factory_;
 };
 
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_DATABASE_H_