Remove {linux|android}_use_tcmalloc and switch to use_allocator in Chromium.

chromeos/chromeos.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     'chromeos_tools.gypi'
@@ skipping 527 matching lines @@
         'network/shill_property_handler_unittest.cc',
         'network/shill_property_util_unittest.cc',
         'process_proxy/process_output_watcher_unittest.cc',
         'process_proxy/process_proxy_unittest.cc',
         'system/name_value_pairs_parser_unittest.cc',
       ],
       'include_dirs': [
         '..',
       ],
       'conditions': [
-        # TODO(dmikurube): Kill linux_use_tcmalloc. http://crbug.com/345554
-        [ '(use_allocator!="none" and use_allocator!="see_use_tcmalloc") or (use_allocator=="see_use_tcmalloc" and linux_use_tcmalloc==1)', {
+        [ 'use_allocator!="none"', {
            'dependencies': [
               '../base/allocator/allocator.gyp:allocator',
             ],
           },
         ],
         ['use_x11 == 1', {
           'dependencies': [
             '../ui/gfx/gfx.gyp:gfx_x11',
           ],
         }]
@@ skipping 39 matching lines @@
       ],
       'variables': {
         'proto_in_dir': '../third_party/cros_system_api/dbus/cryptohome',
         'proto_out_dir': 'chromeos/cryptohome',
       },
       'includes': ['../build/protoc.gypi'],
     },
 
   ],
 }