Bug 1313385 - WebSocketImpl::mSecure should be initialized in the CTOR, r=qdot

dom/base/WebSocket.cpp

@@ -88,6 +88,7 @@ public:
   explicit WebSocketImpl(WebSocket* aWebSocket)
   : mWebSocket(aWebSocket)
   , mIsServerSide(false)
+  , mSecure(false)
   , mOnCloseScheduled(false)
   , mFailed(false)
   , mDisconnectingOrDisconnected(false)