Third patch in getting rid of caching MessageLoop pointers and always using C...

chrome/browser/browsing_data_remover.cc

 // Copyright (c) 2006-2008 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 "chrome/browser/chrome_thread.h"
-#include "chrome/browser/browser_process.h"
 #include "chrome/browser/download/download_manager.h"
 #include "chrome/browser/history/history.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/metrics/user_metrics.h"
 #include "chrome/browser/net/url_request_context_getter.h"
 #include "chrome/browser/password_manager/password_store.h"
 #include "chrome/browser/search_engines/template_url_model.h"
 #include "chrome/browser/sessions/session_service.h"
 #include "chrome/browser/sessions/tab_restore_service.h"
 #include "chrome/browser/webdata/web_data_service.h"
@@ skipping 107 matching lines @@
     UserMetrics::RecordAction(L"ClearBrowsingData_Autofill", profile_);
     WebDataService* web_data_service =
         profile_->GetWebDataService(Profile::EXPLICIT_ACCESS);
 
     web_data_service->RemoveFormElementsAddedBetween(delete_begin_,
         delete_end_);
   }
 
   if (remove_mask & REMOVE_CACHE) {
     // Invoke ClearBrowsingDataView::ClearCache on the IO thread.
-    base::Thread* thread = g_browser_process->io_thread();
-    if (thread) {
-      waiting_for_clear_cache_ = true;
-      UserMetrics::RecordAction(L"ClearBrowsingData_Cache", profile_);
-      thread->message_loop()->PostTask(FROM_HERE, NewRunnableMethod(
-          this,
-          &BrowsingDataRemover::ClearCacheOnIOThread,
-          profile_->GetRequestContext(),
-          delete_begin_,
-          delete_end_,
-          MessageLoop::current()));
-    }
+    waiting_for_clear_cache_ = true;
+    UserMetrics::RecordAction(L"ClearBrowsingData_Cache", profile_);
+    ChromeThread::PostTask(
+        ChromeThread::IO, FROM_HERE,
+        NewRunnableMethod(
+            this,
+            &BrowsingDataRemover::ClearCacheOnIOThread,
+            profile_->GetRequestContext(),
+            delete_begin_,
+            delete_end_,
+            MessageLoop::current()));
   }
 
   NotifyAndDeleteIfDone();
 }
 
 void BrowsingDataRemover::AddObserver(Observer* observer) {
   observer_list_.AddObserver(observer);
 }
 
 void BrowsingDataRemover::RemoveObserver(Observer* observer) {
@@ skipping 96 matching lines @@
     if (delete_begin.is_null())
       cache->DoomAllEntries();
     else
       cache->DoomEntriesBetween(delete_begin, delete_end);
   }
 
   // Notify the UI thread that we are done.
   ui_loop->PostTask(FROM_HERE, NewRunnableMethod(
       this, &BrowsingDataRemover::ClearedCache));
 }