x11: Remove MessagePumpObserver.

ui/events/platform/x11/x11_event_source.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/events/platform/x11/x11_event_source.h"
 
 #include <glib.h>
 #include <X11/extensions/XInput2.h>
 #include <X11/X.h>
 #include <X11/Xlib.h>
 #include <X11/XKBlib.h>
 
 #include "base/logging.h"
-#include "base/message_loop/message_loop.h"
 #include "ui/events/event_utils.h"
 #include "ui/events/platform/platform_event_dispatcher.h"
 #include "ui/gfx/x/x11_types.h"
 
 namespace ui {
 
 namespace {
 
 struct GLibX11Source : public GSource {
   // Note: The GLibX11Source is created and destroyed by GLib. So its
@@ skipping 163 matching lines @@
   g_source_attach(x_source_, g_main_context_default());
 }
 
 uint32_t X11EventSource::DispatchEvent(XEvent* xevent) {
   bool have_cookie = false;
   if (xevent->type == GenericEvent &&
       XGetEventData(xevent->xgeneric.display, &xevent->xcookie)) {
     have_cookie = true;
   }
 
-  // TODO(sad): Remove this once all MessagePumpObservers are turned into
-  // PlatformEventObservers.
-  base::MessagePumpX11::Current()->WillProcessXEvent(xevent);
   uint32_t action = PlatformEventSource::DispatchEvent(xevent);
-  base::MessagePumpX11::Current()->DidProcessXEvent(xevent);
-
   if (xevent->type == GenericEvent &&
       xevent->xgeneric.evtype == XI_HierarchyChanged) {
     ui::UpdateDeviceList();
   }
 
   if (have_cookie)
     XFreeEventData(xevent->xgeneric.display, &xevent->xcookie);
   return action;
 }
 
 scoped_ptr<PlatformEventSource> PlatformEventSource::CreateDefault() {
   return scoped_ptr<PlatformEventSource>(
       new X11EventSource(gfx::GetXDisplay()));
 }
 
 }  // namespace ui