Remove Owner param to EventFilter's ctor.

ui/aura/event_filter.cc

Index: ui/aura/event_filter.cc
===================================================================
--- ui/aura/event_filter.cc	(revision 119894)
+++ ui/aura/event_filter.cc	(working copy)
@@ -1,21 +0,0 @@
-// Copyright (c) 2011 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/aura/event_filter.h"
-
-#include "ui/aura/event.h"
-#include "ui/aura/focus_manager.h"
-#include "ui/aura/root_window.h"
-#include "ui/aura/window.h"
-#include "ui/aura/window_delegate.h"
-
-namespace aura {
-
-EventFilter::EventFilter(Window* owner) : owner_(owner) {
-}
-
-EventFilter::~EventFilter() {
-}
-
-}  // namespace aura