Remove Blink's DatabaseIdentifier implementation

content/child/blink_platform_impl.cc

 // Copyright 2014 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 "content/child/blink_platform_impl.h"
 
 #include <math.h>
 
 #include <vector>
 
@@ skipping 936 matching lines @@
     const blink::WebString& vfs_file_name) {
   return 0;
 }
 
 long long BlinkPlatformImpl::databaseGetFileSize(
     const blink::WebString& vfs_file_name) {
   return 0;
 }
 
 long long BlinkPlatformImpl::databaseGetSpaceAvailableForOrigin(
-    const blink::WebString& origin_identifier) {
+    const blink::WebSecurityOrigin& origin) {
   return 0;
 }
 
 bool BlinkPlatformImpl::databaseSetFileSize(
     const blink::WebString& vfs_file_name, long long size) {
   return false;
 }
 
 blink::WebString BlinkPlatformImpl::signedPublicKeyAndChallengeString(
     unsigned key_size_index,
@@ skipping 56 matching lines @@
   return WebString::fromUTF8(ui::KeycodeConverter::DomKeyToKeyString(
       static_cast<ui::DomKey>(dom_key)));
 }
 
 int BlinkPlatformImpl::domKeyEnumFromString(const WebString& key_string) {
   return static_cast<int>(
       ui::KeycodeConverter::KeyStringToDomKey(key_string.utf8()));
 }
 
 }  // namespace content