Adding <keygen> Content Setting (Final)

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 1202 matching lines @@
 }
 
 bool BlinkPlatformImpl::databaseSetFileSize(
     const blink::WebString& vfs_file_name, long long size) {
   return false;
 }
 
 blink::WebString BlinkPlatformImpl::signedPublicKeyAndChallengeString(
     unsigned key_size_index,
     const blink::WebString& challenge,
-    const blink::WebURL& url) {
+    const blink::WebURL& url,
+    const blink::WebURL& top_origin) {
   return blink::WebString("");
 }
 
 static size_t getMemoryUsageMB(bool bypass_cache) {
   size_t current_mem_usage = 0;
   MemoryUsageCache* mem_usage_cache_singleton = MemoryUsageCache::GetInstance();
   if (!bypass_cache &&
       mem_usage_cache_singleton->IsCachedValueValid(&current_mem_usage))
     return current_mem_usage;
 
@@ skipping 72 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