Remove the speculative resource prefetching code. This was experimental code added 1.5 years ago an…

chrome/browser/profiles/profile_io_data.cc

Index: chrome/browser/profiles/profile_io_data.cc
===================================================================
--- chrome/browser/profiles/profile_io_data.cc	(revision 243063)
+++ chrome/browser/profiles/profile_io_data.cc	(working copy)
@@ -43,9 +43,6 @@
 #include "chrome/browser/net/chrome_network_delegate.h"
 #include "chrome/browser/net/evicted_domain_cookie_counter.h"
 #include "chrome/browser/net/proxy_service_factory.h"
-#include "chrome/browser/net/resource_prefetch_predictor_observer.h"
-#include "chrome/browser/predictors/resource_prefetch_predictor.h"
-#include "chrome/browser/predictors/resource_prefetch_predictor_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/signin/signin_names_io_thread.h"
@@ -382,13 +379,6 @@
   params->extension_info_map =
       extensions::ExtensionSystem::Get(profile)->info_map();
 
-  if (predictors::ResourcePrefetchPredictor* predictor =
-          predictors::ResourcePrefetchPredictorFactory::GetForProfile(
-              profile)) {
-    resource_prefetch_predictor_observer_.reset(
-        new chrome_browser_net::ResourcePrefetchPredictorObserver(predictor));
-  }
-
   ProtocolHandlerRegistry* protocol_handler_registry =
       ProtocolHandlerRegistryFactory::GetForProfile(profile);
   DCHECK(protocol_handler_registry);
@@ -1019,11 +1009,6 @@
   resource_context_->host_resolver_ = io_thread_globals->host_resolver.get();
   resource_context_->request_context_ = main_request_context_.get();
 
-  if (profile_params_->resource_prefetch_predictor_observer_) {
-    resource_prefetch_predictor_observer_.reset(
-        profile_params_->resource_prefetch_predictor_observer_.release());
-  }
-
 #if defined(ENABLE_MANAGED_USERS)
   managed_mode_url_filter_ = profile_params_->managed_mode_url_filter;
 #endif