Revert "Modifying prefetch to account for multi-profile."

chrome/browser/browsing_data_remover.cc

 // 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 "chrome/browser/browsing_data_remover.h"
 
 #include <map>
 #include <set>
 
 #include "base/callback.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/platform_file.h"
 #include "chrome/browser/autofill/personal_data_manager.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_special_storage_policy.h"
 #include "chrome/browser/history/history.h"
 #include "chrome/browser/io_thread.h"
 #include "chrome/browser/net/chrome_net_log.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
-#include "chrome/browser/net/predictor.h"
 #include "chrome/browser/password_manager/password_store.h"
 #include "chrome/browser/plugin_data_remover.h"
 #include "chrome/browser/prerender/prerender_manager.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/renderer_host/web_cache_manager.h"
 #include "chrome/browser/search_engines/template_url_service.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/sessions/session_service.h"
 #include "chrome/browser/sessions/session_service_factory.h"
 #include "chrome/browser/sessions/tab_restore_service.h"
@@ skipping 326 matching lines @@
 void BrowsingDataRemover::ClearedNetworkHistory() {
   waiting_for_clear_networking_history_ = false;
 
   NotifyAndDeleteIfDone();
 }
 
 void BrowsingDataRemover::ClearNetworkingHistory(IOThread* io_thread) {
   // This function should be called on the IO thread.
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
-  io_thread->ClearHostCache();
-
-  chrome_browser_net::Predictor* predictor = profile_->GetNetworkPredictor();
-  if (predictor) {
-    predictor->DiscardInitialNavigationHistory();
-    predictor->DiscardAllResults();
-  }
+  io_thread->ClearNetworkingHistory();
 
   // Notify the UI thread that we are done.
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       NewRunnableMethod(this, &BrowsingDataRemover::ClearedNetworkHistory));
 }
 
 void BrowsingDataRemover::ClearedCache() {
   waiting_for_clear_cache_ = false;
 
@@ skipping 146 matching lines @@
       NewRunnableMethod(
           this,
           &BrowsingDataRemover::NotifyAndDeleteIfDone));
 }
 
 void BrowsingDataRemover::OnWaitableEventSignaled(
     base::WaitableEvent* waitable_event) {
   waiting_for_clear_lso_data_ = false;
   NotifyAndDeleteIfDone();
 }