Create wxWebViewEdge implementation in constructor

This helps with various potential error when using two step creation

include/wx/msw/webview_edge.h

@@ -23,7 +23,7 @@ class WXDLLIMPEXP_WEBVIEW wxWebViewEdge : public wxWebView
 {
 public:
 
-    wxWebViewEdge() {}
+    wxWebViewEdge();
 
     wxWebViewEdge(wxWindow* parent,
         wxWindowID id,
@@ -31,10 +31,7 @@ public:
         const wxPoint& pos = wxDefaultPosition,
         const wxSize& size = wxDefaultSize,
         long style = 0,
-        const wxString& name = wxWebViewNameStr)
-    {
-        Create(parent, id, url, pos, size, style, name);
-    }
+        const wxString& name = wxWebViewNameStr);
 
     ~wxWebViewEdge();
 

src/msw/webview_edge.cpp

@@ -476,6 +476,24 @@ ICoreWebView2Settings* wxWebViewEdgeImpl::GetSettings()
     return settings;
 }
 
+wxWebViewEdge::wxWebViewEdge():
+    m_impl(new wxWebViewEdgeImpl(this))
+{
+
+}
+
+wxWebViewEdge::wxWebViewEdge(wxWindow* parent,
+    wxWindowID id,
+    const wxString& url,
+    const wxPoint& pos,
+    const wxSize& size,
+    long style,
+    const wxString& name):
+    m_impl(new wxWebViewEdgeImpl(this))
+{
+    Create(parent, id, url, pos, size, style, name);
+}
+
 wxWebViewEdge::~wxWebViewEdge()
 {
     wxWindow* topLevelParent = wxGetTopLevelParent(this);
@@ -501,7 +519,6 @@ bool wxWebViewEdge::Create(wxWindow* parent,
         return false;
     }
 
-    m_impl = new wxWebViewEdgeImpl(this);
     if (!m_impl->Create())
         return false;
     Bind(wxEVT_SIZE, &wxWebViewEdge::OnSize, this);
@@ -774,6 +791,8 @@ void wxWebViewEdge::MSWSetBrowserExecutableDir(const wxString & path)
 bool wxWebViewEdge::RunScriptSync(const wxString& javascript, wxString* output) const
 {
     bool scriptExecuted = false;
+    if (!m_impl->m_webView)
+        return false;
 
     // Start script execution
     HRESULT executionResult = m_impl->m_webView->ExecuteScript(javascript.wc_str(), Callback<ICoreWebView2ExecuteScriptCompletedHandler>(