Remove 'using base::string16;' from base/strings/string16.h and remove temporary

sandbox/win/src/handle_closer_agent.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 "sandbox/win/src/handle_closer_agent.h"
 
 #include "base/logging.h"
 #include "sandbox/win/src/nt_internals.h"
 #include "sandbox/win/src/win_utils.h"
 
@@ skipping 70 matching lines @@
   const size_t kHandleOffset = sizeof(HANDLE);
 
   if (!::GetProcessHandleCount(::GetCurrentProcess(), &handle_count))
     return false;
 
   // Set up buffers for the type info and the name.
   std::vector<BYTE> type_info_buffer(sizeof(OBJECT_TYPE_INFORMATION) +
                                      32 * sizeof(wchar_t));
   OBJECT_TYPE_INFORMATION* type_info =
       reinterpret_cast<OBJECT_TYPE_INFORMATION*>(&(type_info_buffer[0]));
-  string16 handle_name;
+  base::string16 handle_name;
   HANDLE handle = NULL;
   int invalid_count = 0;
 
   // Keep incrementing until we hit the number of handles reported by
   // GetProcessHandleCount(). If we hit a very long sequence of invalid
   // handles we assume that we've run past the end of the table.
   while (handle_count && invalid_count < kInvalidHandleThreshold) {
     reinterpret_cast<size_t&>(handle) += kHandleOffset;
     NTSTATUS rc;
 
@@ skipping 34 matching lines @@
         return false;
       if (!::CloseHandle(handle))
         return false;
     }
   }
 
   return true;
 }
 
 }  // namespace sandbox