Report test locations in the test launcher json summary.

base/test/launcher/test_results_tracker.cc

 // Copyright 2013 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 "base/test/launcher/test_results_tracker.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 364 matching lines @@
         test_results->Append(std::move(test_result_value));
       }
 
       current_iteration_data->SetWithoutPathExpansion(j->first,
                                                       std::move(test_results));
     }
     per_iteration_data->Append(std::move(current_iteration_data));
   }
   summary_root->Set("per_iteration_data", std::move(per_iteration_data));
 
+  std::unique_ptr<DictionaryValue> test_locations(new DictionaryValue);
+  for (const auto& item : test_locations_) {
+    std::string test_name = item.first;
+    CodeLocation location = item.second;
+    std::unique_ptr<DictionaryValue> location_value(new DictionaryValue);
+    location_value->SetString("file", location.file);
+    location_value->SetInteger("line", location.line);
+    test_locations->SetWithoutPathExpansion(test_name,
+                                            std::move(location_value));
+  }
+  summary_root->Set("test_locations", std::move(test_locations));
+
   JSONFileValueSerializer serializer(path);
   return serializer.Serialize(*summary_root);
 }
 
 TestResultsTracker::TestStatusMap
     TestResultsTracker::GetTestStatusMapForCurrentIteration() const {
   TestStatusMap tests_by_status;
   GetTestStatusForIteration(iteration_, &tests_by_status);
   return tests_by_status;
 }
@@ skipping 56 matching lines @@
 TestResultsTracker::PerIterationData::PerIterationData() {
 }
 
 TestResultsTracker::PerIterationData::PerIterationData(
     const PerIterationData& other) = default;
 
 TestResultsTracker::PerIterationData::~PerIterationData() {
 }
 
 }  // namespace base