Move webcrypto to child/ and add support to worker_webkitplatformsupport.

content/child/webkitplatformsupport_impl.cc

 // Copyright (c) 2012 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 "base/command_line.h"
 #include "content/child/child_thread.h"
 #include "content/child/socket_stream_dispatcher.h"
+#include "content/child/webcrypto/webcrypto_impl.h"
 #include "content/child/webkitplatformsupport_impl.h"
 #include "content/child/websocket_bridge.h"
 #include "content/public/common/content_client.h"
 
 namespace content {
 
 WebKitPlatformSupportImpl::WebKitPlatformSupportImpl() {
 }
 
 WebKitPlatformSupportImpl::~WebKitPlatformSupportImpl() {
@@ skipping 21 matching lines @@
     WebSocketStreamHandleDelegate* delegate) {
   SocketStreamDispatcher* dispatcher =
       ChildThread::current()->socket_stream_dispatcher();
   return dispatcher->CreateBridge(handle, delegate);
 }
 
 blink::WebSocketHandle* WebKitPlatformSupportImpl::createWebSocketHandle() {
   return new WebSocketBridge;
 }
 
+blink::WebCrypto* WebKitPlatformSupportImpl::crypto() {
+  if (!web_crypto_)
+    web_crypto_.reset(new WebCryptoImpl());
+  return web_crypto_.get();
+}
+
 }  // namespace content