Add a new priority level, THROTTLED, below IDLE.

chrome/browser/predictors/resource_prefetch_predictor_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/predictors/resource_prefetch_predictor.h"
 
 #include <iostream>
 #include <memory>
 #include <utility>
 
@@ skipping 422 matching lines @@
     InitializeRedirectStat(microsoft.add_redirect_endpoints(),
                            "www.microsoft.com", 10, 0, 0);
 
     test_host_redirect_data_.clear();
     test_host_redirect_data_.insert(std::make_pair(bbc.primary_key(), bbc));
     test_host_redirect_data_.insert(
         std::make_pair(microsoft.primary_key(), microsoft));
   }
 }
 
+// Confirm that there's been no shift in the

[Benoit L, 2016/10/21 16:51:20]

Thanks for that!

+// ResourceData_Priority/net::RequestPriority equivalence.
+static_assert(static_cast<int>(net::MINIMUM_PRIORITY) ==
+              static_cast<int>(
+                  ResourceData_Priority_REQUEST_PRIORITY_THROTTLED),
+              "Database/Net priority mismatch: Minimum");
+static_assert(static_cast<int>(net::MAXIMUM_PRIORITY) ==
+              static_cast<int>(ResourceData_Priority_REQUEST_PRIORITY_HIGHEST),
+              "Database/Net priority mismatch: Maximum");
+
 // Tests that the predictor initializes correctly without any data.
 TEST_F(ResourcePrefetchPredictorTest, LazilyInitializeEmpty) {
   EXPECT_TRUE(predictor_->url_table_cache_->empty());
   EXPECT_TRUE(predictor_->host_table_cache_->empty());
   EXPECT_TRUE(predictor_->url_redirect_table_cache_->empty());
   EXPECT_TRUE(predictor_->host_redirect_table_cache_->empty());
 }
 
 // Tests that the history and the db tables data are loaded correctly.
 TEST_F(ResourcePrefetchPredictorTest, LazilyInitializeWithData) {
@@ skipping 1039 matching lines @@
                          net::MEDIUM, false, false);
   predictor_->url_table_cache_->insert(
       std::make_pair(www_google_url.primary_key(), www_google_url));
 
   urls.clear();
   EXPECT_TRUE(predictor_->GetPrefetchData(main_frame_url, &urls));
   EXPECT_THAT(urls, UnorderedElementsAre(GURL(font_url)));
 }
 
 }  // namespace predictors