Convert //chrome from scoped_ptr to std::unique_ptr

chrome/app/chrome_main_delegate.cc

 // Copyright (c) 2012 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/app/chrome_main_delegate.h"
 
 #include <stddef.h>
 
 #include "base/base_paths.h"
 #include "base/command_line.h"
@@ skipping 346 matching lines @@
       command_line->GetSwitchValuePath(switches::kUserDataDir);
   std::string process_type =
       command_line->GetSwitchValueASCII(switches::kProcessType);
 
 #if defined(OS_LINUX)
   // On Linux, Chrome does not support running multiple copies under different
   // DISPLAYs, so the profile directory can be specified in the environment to
   // support the virtual desktop use-case.
   if (user_data_dir.empty()) {
     std::string user_data_dir_string;
-    scoped_ptr<base::Environment> environment(base::Environment::Create());
+    std::unique_ptr<base::Environment> environment(base::Environment::Create());
     if (environment->GetVar("CHROME_USER_DATA_DIR", &user_data_dir_string) &&
         base::IsStringUTF8(user_data_dir_string)) {
       user_data_dir = base::FilePath::FromUTF8Unsafe(user_data_dir_string);
     }
   }
 #endif
 #if defined(OS_MACOSX) || defined(OS_WIN)
   policy::path_parser::CheckUserDataDirPolicy(&user_data_dir);
 #endif
 
@@ skipping 634 matching lines @@
     case version_info::Channel::CANARY:
       return true;
     case version_info::Channel::DEV:
     case version_info::Channel::BETA:
     case version_info::Channel::STABLE:
     default:
       // Don't enable instrumentation.
       return false;
   }
 }