Fix various GCC warnings in wxWebView.

Closes #13532

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69318 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/webview_ie.h

@@ -214,7 +214,7 @@ public:
 class ClassFactory : public IClassFactory
 {
 public:
-    ClassFactory(wxSharedPtr<wxWebViewHandler> handler) : m_handler(handler), m_refCount(0) {}
+    ClassFactory(wxSharedPtr<wxWebViewHandler> handler) : m_refCount(0), m_handler(handler) {}
     //IUnknown
     ULONG STDMETHODCALLTYPE AddRef();
     HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject);