Backed out changeset 23ac0ea522e8 due to old Gtk used on boxes and makes it burn

widget/src/gtk2/mozdrawingarea.c

@@ -164,8 +164,7 @@ moz_drawingarea_create_windows (MozDrawingarea *drawingarea, GdkWindow *parent,
                              GDK_VISIBILITY_NOTIFY_MASK |
                              GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
                              GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
-                             GDK_POINTER_MOTION_MASK |
-                             GDK_POINTER_MOTION_HINT_MASK);
+                             GDK_POINTER_MOTION_MASK);
     /* create the inner window */
     drawingarea->inner_window = gdk_window_new (drawingarea->clip_window,
                                                 &attributes, attributes_mask);

widget/src/gtk2/nsWindow.cpp

@@ -4498,8 +4498,7 @@ nsWindow::GrabPointer(void)
                                              GDK_BUTTON_RELEASE_MASK |
                                              GDK_ENTER_NOTIFY_MASK |
                                              GDK_LEAVE_NOTIFY_MASK |
-                                             GDK_POINTER_MOTION_MASK |
-                                             GDK_POINTER_MOTION_HINT_MASK),
+                                             GDK_POINTER_MOTION_MASK),
                               (GdkWindow *)NULL, NULL, GDK_CURRENT_TIME);
 
     if (retval != GDK_GRAB_SUCCESS) {
@@ -5329,7 +5328,6 @@ motion_notify_event_cb(GtkWidget *widget, GdkEventMotion *event)
 
     window->OnMotionNotifyEvent(widget, event);
 
-    gdk_event_request_motions(event);
     return TRUE;
 }