Revert CL 117933003. Re-add resource speculative prefetching code.

chrome/browser/profiles/profile_io_data.h

Index: chrome/browser/profiles/profile_io_data.h
diff --git a/chrome/browser/profiles/profile_io_data.h b/chrome/browser/profiles/profile_io_data.h
index b43b0d467dfd458cd78553d3dec2b98c2c014a60..c9341acbecb970d992d4ba7157ec6719f1147d68 100644
--- a/chrome/browser/profiles/profile_io_data.h
+++ b/chrome/browser/profiles/profile_io_data.h
@@ -42,6 +42,10 @@ class ProtocolHandlerRegistry;
 class SigninNamesOnIOThread;
 class SupervisedUserURLFilter;
 
+namespace chrome_browser_net {
+class ResourcePrefetchPredictorObserver;
+}
+
 namespace extensions {
 class InfoMap;
 }
@@ -233,6 +237,11 @@ class ProfileIOData {
     return &incognito_availibility_pref_;
   }
 
+  chrome_browser_net::ResourcePrefetchPredictorObserver*
+      resource_prefetch_predictor_observer() const {
+    return resource_prefetch_predictor_observer_.get();
+  }
+
 #if defined(ENABLE_CONFIGURATION_POLICY)
   policy::PolicyHeaderIOHelper* policy_header_helper() const {
     return policy_header_helper_.get();
@@ -315,6 +324,8 @@ class ProfileIOData {
 #if defined(ENABLE_EXTENSIONS)
     scoped_refptr<extensions::InfoMap> extension_info_map;
 #endif
+    scoped_ptr<chrome_browser_net::ResourcePrefetchPredictorObserver>
+    resource_prefetch_predictor_observer_;

[Lei Zhang, 2014/09/09 03:32:20]

nit: indent 4 spaces

[Zhen Wang, 2014/09/13 00:36:33]

Done.

 
     // This pointer exists only as a means of conveying a url job factory
     // pointer from the protocol handler registry on the UI thread to the
@@ -613,6 +624,9 @@ class ProfileIOData {
 
   mutable scoped_refptr<HostContentSettingsMap> host_content_settings_map_;
 
+  mutable scoped_ptr<chrome_browser_net::ResourcePrefetchPredictorObserver>
+      resource_prefetch_predictor_observer_;
+
   mutable scoped_ptr<ChromeHttpUserAgentSettings>
       chrome_http_user_agent_settings_;