Do not show notifications when in fullscreen or screensaver mode....

chrome/browser/idle_mac.cc

Index: chrome/browser/idle_mac.cc
===================================================================
--- chrome/browser/idle_mac.cc	(revision 72519)
+++ chrome/browser/idle_mac.cc	(working copy)
@@ -1,16 +0,0 @@
-// Copyright (c) 2009 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 "chrome/browser/idle.h"
-
-#include <CoreGraphics/CGEventSource.h>
-
-IdleState CalculateIdleState(unsigned int idle_threshold) {
-  unsigned int idle_time = CGEventSourceSecondsSinceLastEventType(
-     kCGEventSourceStateCombinedSessionState,
-     kCGAnyInputEventType);
-  if (idle_time >= idle_threshold)
-    return IDLE_STATE_IDLE;
-  return IDLE_STATE_ACTIVE;
-}