Reset the default quota limit for extensions to 5MB, but add a...

webkit/database/database_util.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 "webkit/database/database_util.h"
 
 #include "base/string_util.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebSecurityOrigin.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebString.h"
 #include "webkit/database/database_tracker.h"
 #include "webkit/database/vfs_backend.h"
 
 namespace webkit_database {
 
 bool DatabaseUtil::CrackVfsFileName(const string16& vfs_file_name,
                                     string16* origin_identifier,
                                     string16* database_name,
                                     string16* sqlite_suffix) {
   // 'vfs_file_name' is of the form <origin_identifier>/<db_name>#<suffix>.
@@ skipping 39 matching lines @@
     full_path = FilePath::FromWStringHack(
         full_path.ToWStringHack() + UTF16ToWide(sqlite_suffix));
   }
   // Watch out for directory traversal attempts from a compromised renderer.
   if (full_path.value().find(FILE_PATH_LITERAL("..")) !=
           FilePath::StringType::npos)
     return FilePath();
   return full_path;
 }
 
+string16 DatabaseUtil::GetOriginIdentifier(const GURL& url) {
+  string16 spec = UTF8ToUTF16(url.spec());
+  return WebKit::WebSecurityOrigin::createFromString(spec).databaseIdentifier();
+}
+
 }  // namespace webkit_database