Fixing memory leak in newly added USB device permission unit tests.

chrome/common/extensions/permissions/usb_device_permission_unittest.cc

 // Copyright (c) 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 <set>
 #include <string>
 
+#include "base/memory/scoped_ptr.h"
 #include "base/pickle.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/common/extensions/permissions/api_permission.h"
 #include "chrome/common/extensions/permissions/chrome_api_permissions.h"
 #include "chrome/common/extensions/permissions/usb_device_permission.h"
 #include "chrome/common/extensions/permissions/usb_device_permission_data.h"
 #include "ipc/ipc_message.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 13 matching lines @@
 #endif  // defined(ENABLE_EXTENSIONS)
 
 TEST(USBDevicePermissionTest, MAYBE_PermissionMessage) {
   const char* const kMessages[] = {
       "Access the USB device PVR Mass Storage from HUMAX Co., Ltd..",
       "Access the USB device from HUMAX Co., Ltd..",
       "Access the USB device.",
   };
 
   // Prepare data set
-  base::ListValue* permission_list = new base::ListValue();
+  scoped_ptr<base::ListValue> permission_list(new base::ListValue());
   permission_list->Append(
       UsbDevicePermissionData(0x02ad, 0x138c).ToValue()->DeepCopy());
   permission_list->Append(
       UsbDevicePermissionData(0x02ad, 0x138d).ToValue()->DeepCopy());
   permission_list->Append(
       UsbDevicePermissionData(0x02ae, 0x138d).ToValue()->DeepCopy());
 
   UsbDevicePermission permission(
       PermissionsInfo::GetInstance()->GetByID(APIPermission::kUsbDevice));
-  ASSERT_TRUE(permission.FromValue(permission_list));
+  ASSERT_TRUE(permission.FromValue(permission_list.get()));
 
   PermissionMessages messages = permission.GetMessages();
   ASSERT_EQ(3U, messages.size());
   EXPECT_EQ(ASCIIToUTF16(kMessages[0]), messages.at(0).message());
   EXPECT_EQ(ASCIIToUTF16(kMessages[1]), messages.at(1).message());
   EXPECT_EQ(ASCIIToUTF16(kMessages[2]), messages.at(2).message());
 }
 
 }  // namespace extensions