Update a bunch of files to the new location of browser_thread.h

chrome/browser/chromeos/proxy_config_service_impl.cc

 // Copyright (c) 2010 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/chromeos/proxy_config_service_impl.h"
 
 #include <ostream>
 
 #include "base/logging.h"
 #include "base/string_util.h"
 #include "base/task.h"
-#include "chrome/browser/browser_thread.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
 #include "chrome/common/json_value_serializer.h"
+#include "content/browser/browser_thread.h"
 
 namespace chromeos {
 
 namespace {
 
 const char* SourceToString(ProxyConfigServiceImpl::ProxyConfig::Source source) {
   switch (source) {
     case ProxyConfigServiceImpl::ProxyConfig::SOURCE_NONE:
       return "SOURCE_NONE";
     case ProxyConfigServiceImpl::ProxyConfig::SOURCE_POLICY:
@@ skipping 594 matching lines @@
   has_config_ = true;
   cached_config_ = new_config;
   // Notify observers of new proxy config.
   net::ProxyConfig net_config;
   cached_config_.ToNetProxyConfig(&net_config);
   FOR_EACH_OBSERVER(net::ProxyConfigService::Observer, observers_,
                     OnProxyConfigChanged(net_config));
 }
 
 }  // namespace chromeos