Move webcrypto to child/ and add support to worker_webkitplatformsupport.

content/worker/worker_webkitplatformsupport_impl.h

Index: content/worker/worker_webkitplatformsupport_impl.h
diff --git a/content/worker/worker_webkitplatformsupport_impl.h b/content/worker/worker_webkitplatformsupport_impl.h
index d6f711c8a8f78be288759d8c931825657086ce79..1e1a8b2cffb62406bc5be0939243066d0e07cac9 100644
--- a/content/worker/worker_webkitplatformsupport_impl.h
+++ b/content/worker/worker_webkitplatformsupport_impl.h
@@ -25,6 +25,7 @@ class WebFileUtilities;
 namespace content {
 class QuotaMessageFilter;
 class ThreadSafeSender;
+class WebCryptoImpl;
 class WebDatabaseObserverImpl;
 class WebFileSystemImpl;
 
@@ -98,6 +99,7 @@ class WorkerWebKitPlatformSupportImpl : public WebKitPlatformSupportImpl,
   virtual blink::WebString wellKnownMimeTypeForExtension(
       const blink::WebString&);
   virtual blink::WebString mimeTypeFromFile(const blink::WebString&);
+  virtual blink::WebCrypto* crypto() OVERRIDE;
   virtual void queryStorageUsageAndQuota(
       const blink::WebURL& storage_partition,
       blink::WebStorageQuotaType,
@@ -118,6 +120,7 @@ class WorkerWebKitPlatformSupportImpl : public WebKitPlatformSupportImpl,
   scoped_refptr<IPC::SyncMessageFilter> sync_message_filter_;
   scoped_refptr<QuotaMessageFilter> quota_message_filter_;
   scoped_ptr<WebDatabaseObserverImpl> web_database_observer_impl_;
+  scoped_ptr<WebCryptoImpl> web_crypto_;
 
   DISALLOW_COPY_AND_ASSIGN(WorkerWebKitPlatformSupportImpl);
 };