Cleanup: Remove more unneeded browser_thread.h includes.

chrome/browser/safe_browsing/protocol_manager.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 "chrome/browser/safe_browsing/protocol_manager.h"
 
 #ifndef NDEBUG
 #include "base/base64.h"
 #endif
 #include "base/environment.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/rand_util.h"
 #include "base/stl_util.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/timer.h"
 #include "chrome/browser/safe_browsing/protocol_parser.h"
 #include "chrome/common/chrome_version_info.h"
 #include "chrome/common/env_vars.h"
-#include "content/public/browser/browser_thread.h"
 #include "google_apis/google_api_keys.h"
 #include "net/base/escape.h"
 #include "net/base/load_flags.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "net/url_request/url_request_status.h"
 
 using base::Time;
 using base::TimeDelta;
 
@@ skipping 608 matching lines @@
     FullHashCallback callback, bool is_download)
     : callback(callback),
       is_download(is_download) {
 }
 
 SafeBrowsingProtocolManager::FullHashDetails::~FullHashDetails() {
 }
 
 SafeBrowsingProtocolManagerDelegate::~SafeBrowsingProtocolManagerDelegate() {
 }