Initial commit of CookieMonster statistics.

chrome/browser/net/sqlite_persistent_cookie_store.cc

 // Copyright (c) 2010 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.
 
 #include "chrome/browser/net/sqlite_persistent_cookie_store.h"
 
 #include <list>
 
 #include "app/sql/statement.h"
 #include "app/sql/transaction.h"
@@ skipping 213 matching lines @@
         del_smt.BindInt64(0, po->cc().CreationDate().ToInternalValue());
         if (!del_smt.Run())
           NOTREACHED() << "Could not delete a cookie from the DB.";
         break;
 
       default:
         NOTREACHED();
         break;
     }
   }
-  transaction.Commit();
+  bool succeeded = transaction.Commit();
+  UMA_HISTOGRAM_ENUMERATION("net.CookieBackingStoreUpdateResults",
+                            succeeded ? 0 : 1, 2);
 }
 
 // Fire off a close message to the background thread.  We could still have a
 // pending commit timer that will be holding a reference on us, but if/when
 // this fires we will already have been cleaned up and it will be ignored.
 void SQLitePersistentCookieStore::Backend::Close() {
   DCHECK(!ChromeThread::CurrentlyOn(ChromeThread::DB));
   // Must close the backend on the background thread.
   ChromeThread::PostTask(
       ChromeThread::DB, FROM_HERE,
@@ skipping 199 matching lines @@
     const net::CookieMonster::CanonicalCookie& cc) {
   if (backend_.get())
     backend_->DeleteCookie(cc);
 }
 
 // static
 void SQLitePersistentCookieStore::ClearLocalState(
     const FilePath& path) {
   file_util::Delete(path, false);
 }