Cleanup: Remove unneeded browser_thread.h includes in contents.

content/browser/power_save_blocker_mac.cc

 // Copyright (c) 2012 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 "content/browser/power_save_blocker.h"
 
 #include <IOKit/pwr_mgt/IOPMLib.h>
 
 #include "base/bind.h"
 #include "base/lazy_instance.h"
 #include "base/mac/scoped_cftyperef.h"
 #include "base/sys_string_conversions.h"
 #include "base/threading/platform_thread.h"
 #include "base/threading/thread.h"
-#include "content/public/browser/browser_thread.h"
 
 namespace content {
 namespace {
 
 // Power management cannot be done on the UI thread. IOPMAssertionCreate does a
 // synchronous MIG call to configd, so if it is called on the main thread the UI
 // is at the mercy of another process. See http://crbug.com/79559 and
 // http://www.opensource.apple.com/source/IOKitUser/IOKitUser-514.16.31/pwr_mgt.subproj/IOPMLibPrivate.c .
 struct PowerSaveBlockerLazyInstanceTraits {
   static const bool kRegisterOnExit = false;
@@ skipping 78 matching lines @@
       base::Bind(&Delegate::ApplyBlock, delegate_));
 }
 
 PowerSaveBlocker::~PowerSaveBlocker() {
   g_power_thread.Pointer()->message_loop()->PostTask(
       FROM_HERE,
       base::Bind(&Delegate::RemoveBlock, delegate_));
 }
 
 }  // namespace content