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

ui/views/views.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,
   },
   'target_defaults': {
     'conditions': [
       ['use_aura==1', {
@@ skipping 681 matching lines @@
                 '$(ProjectDir)\\test\\views_unittest.manifest',
               ],
             },
           },
         }],
         ['OS=="win" and win_use_allocator_shim==1', {
           'dependencies': [
             '../../base/allocator/allocator.gyp:allocator',
           ],
         }],
-        # TODO(dmikurube): Kill linux_use_tcmalloc. http://crbug.com/345554
-        ['OS=="linux" and ((use_allocator!="none" and use_allocator!="see_use_tcmalloc") or (use_allocator=="see_use_tcmalloc" and linux_use_tcmalloc==1))', {
+        ['OS=="linux" and use_allocator!="none"', {
            # See http://crbug.com/162998#c4 for why this is needed.
           'dependencies': [
             '../../base/allocator/allocator.gyp:allocator',
           ],
         }],
         ['use_ozone==1', {
           'sources!': [
             'corewm/capture_controller_unittest.cc',
           ],
         }],
         ['use_aura==1', {
           'dependencies': [
             '../aura/aura.gyp:aura_test_support',
           ],
         }],
       ],
     },  # target_name: views_unittests
   ],
 }