Linux: delete the unencrypted login database file after a successful password migration.

chrome/browser/password_manager/login_database.cc

Index: chrome/browser/password_manager/login_database.cc
===================================================================
--- chrome/browser/password_manager/login_database.cc	(revision 51079)
+++ chrome/browser/password_manager/login_database.cc	(working copy)
@@ -10,6 +10,7 @@
 #include "app/sql/statement.h"
 #include "app/sql/transaction.h"
 #include "base/file_path.h"
+#include "base/file_util.h"
 #include "base/histogram.h"
 #include "base/logging.h"
 #include "base/time.h"
@@ -77,6 +78,9 @@
     return false;
   }
 
+  // Save the path for DeleteDatabaseFile().
+  db_path_ = db_path;
+
   // If the file on disk is an older database version, bring it up to date.
   MigrateOldVersionsAsNeeded();
 
@@ -390,3 +394,11 @@
   }
   return s.Succeeded();
 }
+
+bool LoginDatabase::DeleteAndRecreateDatabaseFile() {
+  DCHECK(db_.is_open());
+  meta_table_.Reset();
+  db_.Close();
+  file_util::Delete(db_path_, false);
+  return Init(db_path_);
+}