Rewrite simple uses of base::ListValue::Append() taking a raw pointer var.

chrome/browser/extensions/api/webrtc_logging_private/webrtc_event_log_apitest.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 <memory>
+#include <utility>
+
 #include "base/command_line.h"
 #include "base/json/json_writer.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/threading/platform_thread.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "chrome/browser/extensions/api/webrtc_logging_private/webrtc_logging_private_api.h"
 #include "chrome/browser/extensions/extension_function_test_utils.h"
 #include "chrome/browser/extensions/extension_tab_util.h"
 #include "chrome/browser/media/webrtc_browsertest_base.h"
@@ skipping 68 matching lines @@
   template <typename T>
   scoped_refptr<T> CreateExtensionFunction() {
     scoped_refptr<T> function(new T());
     function->set_extension(extension_.get());
     function->set_has_callback(true);
     return function;
   }
 
   void AppendTabIdAndUrl(base::ListValue* parameters,
                          content::WebContents* tab) {
-    base::DictionaryValue* request_info = new base::DictionaryValue();
+    std::unique_ptr<base::DictionaryValue> request_info(
+        new base::DictionaryValue());
     request_info->SetInteger("tabId",
                              extensions::ExtensionTabUtil::GetTabId(tab));
-    parameters->Append(request_info);
+    parameters->Append(std::move(request_info));
     parameters->AppendString(tab->GetURL().GetOrigin().spec());
   }
 
  private:
   scoped_refptr<extensions::Extension> extension_;
 };
 
 }  // namespace
 
 IN_PROC_BROWSER_TEST_F(WebrtcEventLogApiTest, TestStartStopWebRtcEventLogging) {
@@ skipping 152 matching lines @@
     VLOG(1) << "Waiting for logfile to become available...";
     base::PlatformThread::Sleep(base::TimeDelta::FromMilliseconds(100));
   }
   ASSERT_TRUE(base::PathExists(full_file_name));
   EXPECT_TRUE(base::GetFileSize(full_file_name, &file_size));
   EXPECT_GT(file_size, 0);
 
   // Clean up.
   base::DeleteFile(full_file_name, false);
 }