Attempt an on-demand time fetch when encountering a date invalid error

components/network_time/network_time_test_utils.cc

 // Copyright 2016 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 "components/network_time/network_time_test_utils.h"
 
 #include "base/feature_list.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/test/mock_entropy_provider.h"
 #include "base/test/scoped_feature_list.h"
 #include "components/variations/variations_associated_data.h"
 #include "net/http/http_response_headers.h"
 #include "net/test/embedded_test_server/http_response.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace network_time {
 
+const double kGoodTimeResponseHandlerTime = 1461621971825;
+
 // Returns a valid time response.  Update as follows:
 //
 // curl http://clients2.google.com/time/1/current?cup2key=1:123123123
 //
 // where 1 is the key version and 123123123 is the nonce.  Copy the nonce, the
 // response, and the x-cup-server-proof header into the test.
 std::unique_ptr<net::test_server::HttpResponse> GoodTimeResponseHandler(
     const net::test_server::HttpRequest& request) {
   net::test_server::BasicHttpResponse* response =
       new net::test_server::BasicHttpResponse();
   response->set_code(net::HTTP_OK);
   response->set_content(
       ")]}'\n"
-      "{\"current_time_millis\":1461621971825,\"server_nonce\":-6."
+      "{\"current_time_millis\":" +
+      base::DoubleToString(kGoodTimeResponseHandlerTime) +
+      ",\"server_nonce\":-6."
       "006853099049523E85}");
   response->AddCustomHeader(
       "x-cup-server-proof",
       "304402202e0f24db1ea69f1bbe81da4108f381fcf7a2781c53cf7663cb47083cb5fe8e"
       "fd"
       "022009d2b67c0deceaaf849f7c529be96701ed5f15d5efcaf401a94e0801accc9832:"
       "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855");
   return std::unique_ptr<net::test_server::HttpResponse>(response);
 }
 
 FieldTrialTest::FieldTrialTest() {}
 FieldTrialTest::~FieldTrialTest() {}
 
+FieldTrialTest* FieldTrialTest::CreateForBrowserTest() {
+  FieldTrialTest* test = new FieldTrialTest();
+  test->create_field_trial_list_ = false;
+  return test;
+}
+
 void FieldTrialTest::SetNetworkQueriesWithVariationsService(
     bool enable,
     float query_probability,
-    FetchesOnDemandStatus fetches_on_demand) {
+    FetchBehavior fetch_behavior) {
   const std::string kTrialName = "Trial";
   const std::string kGroupName = "group";
   const base::Feature kFeature{"NetworkTimeServiceQuerying",
                                base::FEATURE_DISABLED_BY_DEFAULT};
 
   // Clear all the things.
   variations::testing::ClearAllVariationParams();
 
   std::map<std::string, std::string> params;
   params["RandomQueryProbability"] = base::DoubleToString(query_probability);
   params["CheckTimeIntervalSeconds"] = base::Int64ToString(360);
-  params["EnableFetchesOnDemand"] =
-      fetches_on_demand == ENABLE_FETCHES_ON_DEMAND ? "true" : "";
+  std::string fetch_behavior_param;
+  switch (fetch_behavior) {
+    case FETCHES_IN_BACKGROUND_ONLY:
+      fetch_behavior_param = "background-only";
+      break;
+    case FETCHES_ON_DEMAND_ONLY:
+      fetch_behavior_param = "on-demand-only";
+      break;
+    case FETCHES_IN_BACKGROUND_AND_ON_DEMAND:
+      fetch_behavior_param = "background-and-on-demand";
+      break;
+  }
+  params["FetchBehavior"] = fetch_behavior_param;
 
   // There are 3 things here: a FieldTrial, a FieldTrialList, and a
   // FeatureList.  Don't get confused!  The FieldTrial is reference-counted,
   // and a reference is held by the FieldTrialList.  The FieldTrialList and
   // FeatureList are both singletons.  The authorized way to reset the former
   // for testing is to destruct it (above).  The latter, by contrast, should
   // should already start in a clean state and can be manipulated via the
   // ScopedFeatureList helper class. If this comment was useful to you
   // please send me a postcard.
 
-  field_trial_list_.reset();  // Averts a CHECK fail in constructor below.
-  field_trial_list_.reset(
-      new base::FieldTrialList(base::MakeUnique<base::MockEntropyProvider>()));
-  // refcounted, and reference held by field_trial_list_.
+  if (create_field_trial_list_) {
+    field_trial_list_.reset();  // Averts a CHECK fail in constructor below.
+    field_trial_list_.reset(new base::FieldTrialList(
+        base::MakeUnique<base::MockEntropyProvider>()));
+  }
+  // refcounted, and reference held by the singleton FieldTrialList.
   base::FieldTrial* trial = base::FieldTrialList::FactoryGetFieldTrial(
       kTrialName, 100, kGroupName, 1971, 1, 1,
       base::FieldTrial::SESSION_RANDOMIZED, nullptr /* default_group_number */);
   ASSERT_TRUE(
       variations::AssociateVariationParams(kTrialName, kGroupName, params));
 
   std::unique_ptr<base::FeatureList> feature_list(new base::FeatureList);
   feature_list->RegisterFieldTrialOverride(
       kFeature.name, enable ? base::FeatureList::OVERRIDE_ENABLE_FEATURE
                             : base::FeatureList::OVERRIDE_DISABLE_FEATURE,
       trial);
   scoped_feature_list_.reset(new base::test::ScopedFeatureList);
   scoped_feature_list_->InitWithFeatureList(std::move(feature_list));
 }
 
 }  // namespace network_time