clients & tests: use eglCreatePlatformWindowSurfaceEXT when supported

Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>

clients/nested-client.c

@@ -307,10 +307,9 @@ nested_client_create(void)
 	client->native = wl_egl_window_create(client->surface,
 					      client->width, client->height);
 
-	client->egl_surface =
-		eglCreateWindowSurface(client->egl_display,
-				       client->egl_config,
-				       client->native, NULL);
+	client->egl_surface = weston_platform_create_egl_window (client->egl_display,
+								 client->egl_config,
+								 client->native, NULL);
 
 	eglMakeCurrent(client->egl_display, client->egl_surface,
 		       client->egl_surface, client->egl_context);

clients/simple-egl.c

@@ -386,9 +386,10 @@ create_surface(struct window *window)
 				     window->geometry.width,
 				     window->geometry.height);
 	window->egl_surface =
-		eglCreateWindowSurface(display->egl.dpy,
-				       display->egl.conf,
-				       window->native, NULL);
+		weston_platform_create_egl_window(display->egl.dpy,
+						  display->egl.conf,
+						  window->native, NULL);
+
 
 	if (display->shell) {
 		create_xdg_surface(window, display);

clients/subsurfaces.c

@@ -422,9 +422,9 @@ triangle_create_egl_surface(struct triangle *tri, int width, int height)
 
 	tri->wl_surface = widget_get_wl_surface(tri->widget);
 	tri->egl_window = wl_egl_window_create(tri->wl_surface, width, height);
-	tri->egl_surface = eglCreateWindowSurface(tri->egl->dpy,
-						  tri->egl->conf,
-						  tri->egl_window, NULL);
+	tri->egl_surface = weston_platform_create_egl_window(tri->egl->dpy,
+							     tri->egl->conf,
+							     tri->egl_window, NULL);
 
 	ret = eglMakeCurrent(tri->egl->dpy, tri->egl_surface,
 			     tri->egl_surface, tri->egl->ctx);

clients/window.c

@@ -640,10 +640,10 @@ egl_window_surface_create(struct display *display,
 						   rectangle->width,
 						   rectangle->height);
 
-	surface->egl_surface = eglCreateWindowSurface(display->dpy,
-						      display->argb_config,
-						      surface->egl_window,
-						      NULL);
+	surface->egl_surface =
+		weston_platform_create_egl_window(display->dpy,
+						  display->argb_config,
+						  surface->egl_window, NULL);
 
 	surface->cairo_surface =
 		cairo_gl_surface_create_for_egl(display->argb_device,