Make WebSocket available again in service workers

third_party/WebKit/Source/modules/websockets/DocumentWebSocketChannel.cpp

Index: third_party/WebKit/Source/modules/websockets/DocumentWebSocketChannel.cpp
diff --git a/third_party/WebKit/Source/modules/websockets/DocumentWebSocketChannel.cpp b/third_party/WebKit/Source/modules/websockets/DocumentWebSocketChannel.cpp
index 95c0ded764028caec622a5dee76bd01b8675ae98..841bc63fd0b1a7847bb42a57f22721b4f243b255 100644
--- a/third_party/WebKit/Source/modules/websockets/DocumentWebSocketChannel.cpp
+++ b/third_party/WebKit/Source/modules/websockets/DocumentWebSocketChannel.cpp
@@ -174,15 +174,7 @@ bool DocumentWebSocketChannel::connect(const KURL& url,
     protocol.split(", ", true, protocols);
   }
 
-  if (document()->frame()) {
-    // Initialize the WebSocketHandle with the frame's InterfaceProvider to
-    // provide the WebSocket implementation with context about this frame.
-    // This is important so that the browser can show UI associated with
-    // the WebSocket (e.g., for certificate errors).
-    m_handle->initialize(document()->frame()->interfaceProvider());
-  } else {
-    m_handle->initialize(Platform::current()->interfaceProvider());
-  }
+  m_handle->initialize(Platform::current()->interfaceProvider());
   m_handle->connect(url, protocols, document()->getSecurityOrigin(),
                     document()->firstPartyForCookies(), document()->userAgent(),
                     this);