Adds speculative prefetching of resources.

chrome/browser/predictors/resource_prefetch_predictor_factory.cc

Index: chrome/browser/predictors/resource_prefetch_predictor_factory.cc
diff --git a/chrome/browser/predictors/resource_prefetch_predictor_factory.cc b/chrome/browser/predictors/resource_prefetch_predictor_factory.cc
index b58c8ed8c7f61f76a0cd88e890413dccb2483246..04de4e788ee1f5b0c5f22d3234f3009d8561420b 100644
--- a/chrome/browser/predictors/resource_prefetch_predictor_factory.cc
+++ b/chrome/browser/predictors/resource_prefetch_predictor_factory.cc
@@ -7,6 +7,7 @@
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/predictors/predictor_database_factory.h"
 #include "chrome/browser/predictors/resource_prefetch_predictor.h"
+#include "chrome/browser/prerender/prerender_field_trial.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
 
@@ -37,10 +38,11 @@ ResourcePrefetchPredictorFactory::~ResourcePrefetchPredictorFactory() {}
 ProfileKeyedService*
     ResourcePrefetchPredictorFactory::BuildServiceInstanceFor(
         Profile* profile) const {
-  return ResourcePrefetchPredictor::IsEnabled(profile) ?
-          new ResourcePrefetchPredictor(ResourcePrefetchPredictor::Config(),
-                                        profile) :
-          NULL;
+  return (prerender::IsSpeculativeResourcePrefetchingEnabled(profile) ||
+          prerender::IsSpeculativeResourcePrefetchingLearningEnabled(profile)) ?
+      new ResourcePrefetchPredictor(ResourcePrefetchPredictorConfig(),
+                                    profile) :
+      NULL;
 }
 
 }  // namespace predictors