Add context menu enabling and disabling to wxWebView, all backends supported.

Closes #14789.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73326 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/webview.h

@@ -487,6 +487,20 @@ public:
     */
     virtual void Paste() = 0;
 
+    /**
+        @name Context Menu
+    */
+
+    /**
+        Enable or disbale the right click context menu.
+    */
+    virtual void EnableContextMenu(bool enable = true);
+
+   /**
+        Returns @true if a context menu will be shown on right click.
+    */
+    virtual bool IsContextMenuEnabled() const;
+
     /**
         @name History
     */