Added debug/style/widget render mode to the viewer menu in GTK. This allows

the viewer to set whether native or gfx-rendered widgets should be used.

webshell/tests/viewer/nsGTKMenu.cpp

@@ -111,6 +111,10 @@ GtkItemFactoryEntry menu_items[] =
   { "/Debug/Style/_Compatibility Mode",		nsnull,	nsnull,			0,			"<Branch>" },
   { "/Debug/Style/Compatibility Mode/Nav Quirks",	nsnull,	(GIFC)gtk_ifactory_cb,	VIEWER_NAV_QUIRKS_MODE,	nsnull },
   { "/Debug/Style/Compatibility Mode/Standard",	nsnull,	(GIFC)gtk_ifactory_cb,	VIEWER_STANDARD_MODE,	nsnull },
+
+  { "/Debug/Style/_Widget Render Mode",		nsnull,	nsnull,			0,			"<Branch>" },
+  { "/Debug/Style/Widget Render Mode/Native",	nsnull,	(GIFC)gtk_ifactory_cb,	VIEWER_NATIVE_WIDGET_MODE,	nsnull },
+  { "/Debug/Style/Widget Render Mode/Gfx",	nsnull,	(GIFC)gtk_ifactory_cb,	VIEWER_GFX_WIDGET_MODE,	nsnull },
 #endif
 
   { "/_Tools",                                nsnull, nsnull,                 0,              "<Branch>" },

webshell/tests/viewer/resources.h

@@ -61,6 +61,8 @@
 #define VIEWER_STANDARD_MODE        40043
 #define VIEWER_TABLE_INSPECTOR      40044
 #define VIEWER_IMAGE_INSPECTOR      40045
+#define VIEWER_NATIVE_WIDGET_MODE   40046
+#define VIEWER_GFX_WIDGET_MODE      40047
 
 #define VIEWER_SELECT_STYLE_LIST    40500
 #define VIEWER_SELECT_STYLE_DEFAULT 40501