Fix more disabled MSVC warnings, base/ edition.

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 "base/base64.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
@@ skipping 270 matching lines @@
       current_iteration_data->SetWithoutPathExpansion(j->first, test_results);
 
       for (size_t k = 0; k < j->second.test_results.size(); k++) {
         const TestResult& test_result = j->second.test_results[k];
 
         DictionaryValue* test_result_value = new DictionaryValue;
         test_results->Append(test_result_value);
 
         test_result_value->SetString("status", test_result.StatusAsString());
         test_result_value->SetInteger(
-            "elapsed_time_ms", test_result.elapsed_time.InMilliseconds());
+            "elapsed_time_ms",
+            static_cast<int>(test_result.elapsed_time.InMilliseconds()));
 
         // There are no guarantees about character encoding of the output
         // snippet. Escape it and record whether it was losless.
         // It's useful to have the output snippet as string in the summary
         // for easy viewing.
         std::string escaped_output_snippet;
         bool losless_snippet = EscapeJSONString(
             test_result.output_snippet, false, &escaped_output_snippet);
         test_result_value->SetString("output_snippet",
                                      escaped_output_snippet);
@@ skipping 48 matching lines @@
 TestResultsTracker::AggregateTestResult::~AggregateTestResult() {
 }
 
 TestResultsTracker::PerIterationData::PerIterationData() {
 }
 
 TestResultsTracker::PerIterationData::~PerIterationData() {
 }
 
 }  // namespace base