Add Get/SetUniqueIdForProcess.

base/base.gypi

 # 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.
 
 {
   'includes': [
     'trace_event/trace_event.gypi',
   ],
   'target_defaults': {
     'variables': {
@@ skipping 456 matching lines @@
           'process/launch_ios.cc',
           'process/launch_mac.cc',
           'process/launch_posix.cc',
           'process/launch_win.cc',
           'process/memory.cc',
           'process/memory.h',
           'process/memory_linux.cc',
           'process/memory_mac.mm',
           'process/memory_win.cc',
           'process/process.h',
+          'process/process_handle.cc',

[danakj, 2015/06/17 17:17:16]

add the header here too, it was omitted.

           'process/process_handle_freebsd.cc',
           'process/process_handle_linux.cc',
           'process/process_handle_mac.cc',
           'process/process_handle_openbsd.cc',
           'process/process_handle_posix.cc',
           'process/process_handle_win.cc',
           'process/process_info.h',
           'process/process_info_linux.cc',
           'process/process_info_mac.cc',
           'process/process_info_win.cc',
@@ skipping 543 matching lines @@
           'i18n/time_formatting.h',
           'i18n/timezone.cc',
           'i18n/timezone.h',
           'i18n/utf8_validator_tables.cc',
           'i18n/utf8_validator_tables.h',
         ],
       }]
     ],
   },
 }