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

chrome/browser/browsing_data_remover.cc

Index: chrome/browser/browsing_data_remover.cc
diff --git a/chrome/browser/browsing_data_remover.cc b/chrome/browser/browsing_data_remover.cc
index 138ce0cc49d5c300449ca1563ea3530d32c089e3..56bbd7d972f22335101e0944bdd0cddce9de94da 100644
--- a/chrome/browser/browsing_data_remover.cc
+++ b/chrome/browser/browsing_data_remover.cc
@@ -19,7 +19,6 @@
 #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"
@@ -366,13 +365,7 @@ 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(