Fix a bit of C++11 in web/

Source/web/WebSocketImpl.cpp

Index: Source/web/WebSocketImpl.cpp
diff --git a/Source/web/WebSocketImpl.cpp b/Source/web/WebSocketImpl.cpp
index a7aa5b142805f7e382bb5c3ccaf2d97b5a97bce6..3e05aaea588fdb83f405e7d308e9ebcf0f2285e4 100644
--- a/Source/web/WebSocketImpl.cpp
+++ b/Source/web/WebSocketImpl.cpp
@@ -145,7 +145,7 @@ void WebSocketImpl::fail(const WebString& reason)
 void WebSocketImpl::disconnect()
 {
     m_private->disconnect();
-    m_client = 0;
+    m_client = nullptr;
 }
 
 void WebSocketImpl::didConnect(const String& subprotocol, const String& extensions)
@@ -163,7 +163,7 @@ void WebSocketImpl::didReceiveTextMessage(const String& payload)
     m_client->didReceiveMessage(WebString(payload));
 }
 
-void WebSocketImpl::didReceiveBinaryMessage(PassOwnPtr<Vector<char> > payload)
+void WebSocketImpl::didReceiveBinaryMessage(PassOwnPtr<Vector<char>> payload)
 {
     switch (m_binaryType) {
     case BinaryTypeBlob: