Run clang-modernize -use-nullptr over src/extensions/.

extensions/browser/api/runtime/runtime_apitest.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/apps/app_browsertest_util.h"
 #include "chrome/browser/extensions/api/management/management_api.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_function_test_utils.h"
 #include "chrome/browser/extensions/test_extension_dir.h"
 #include "chrome/test/base/ui_test_utils.h"
@@ skipping 29 matching lines @@
                                 .AppendASCII("sets_uninstall_url")));
   ASSERT_TRUE(RunExtensionTest("runtime/uninstall_url")) << message_;
 }
 
 namespace extensions {
 
 IN_PROC_BROWSER_TEST_F(ExtensionApiTest, ChromeRuntimeGetPlatformInfo) {
   scoped_ptr<base::Value> result(
       extension_function_test_utils::RunFunctionAndReturnSingleResult(
           new RuntimeGetPlatformInfoFunction(), "[]", browser()));
-  ASSERT_TRUE(result.get() != NULL);
+  ASSERT_TRUE(result.get() != nullptr);
   base::DictionaryValue* dict =
       extension_function_test_utils::ToDictionary(result.get());
-  ASSERT_TRUE(dict != NULL);
+  ASSERT_TRUE(dict != nullptr);
   EXPECT_TRUE(dict->HasKey("os"));
   EXPECT_TRUE(dict->HasKey("arch"));
   EXPECT_TRUE(dict->HasKey("nacl_arch"));
 }
 
 // Tests chrome.runtime.getPackageDirectory with an app.
 IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest,
                        ChromeRuntimeGetPackageDirectoryEntryApp) {
   ClearCommandLineArgs();
   ASSERT_TRUE(RunPlatformAppTest("api_test/runtime/get_package_directory/app"))
@@ skipping 50 matching lines @@
     } else {
       load_observer.Wait();
       WaitForExtensionViewsToLoad();
     }
   }
   ASSERT_TRUE(
       registry->GetExtensionById(extension_id, ExtensionRegistry::TERMINATED));
 }
 
 }  // namespace extensions