predictors: Enable origin learning with a flag.

chrome/browser/predictors/resource_prefetch_predictor_unittest.cc

Index: chrome/browser/predictors/resource_prefetch_predictor_unittest.cc
diff --git a/chrome/browser/predictors/resource_prefetch_predictor_unittest.cc b/chrome/browser/predictors/resource_prefetch_predictor_unittest.cc
index 508e408680e31053fd21cb989d8f362622dd83ab..acf018c795c4673fec1db1d4a271eb44c42d51b4 100644
--- a/chrome/browser/predictors/resource_prefetch_predictor_unittest.cc
+++ b/chrome/browser/predictors/resource_prefetch_predictor_unittest.cc
@@ -241,7 +241,7 @@ class ResourcePrefetchPredictorTest : public testing::Test {
     config.min_resource_confidence_to_trigger_prefetch = 0.5;
     config.is_url_learning_enabled = true;
     config.is_manifests_enabled = true;
-    config.is_origin_prediction_enabled = true;
+    config.is_origin_learning_enabled = true;
 
     config.mode |= ResourcePrefetchPredictorConfig::LEARNING;
     predictor_.reset(new ResourcePrefetchPredictor(config, profile_.get()));