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

chrome/chrome_android.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.
 {
   'variables': {
     'chromium_code': 1,
     'package_name': 'chrome_shell_apk',
   },
   'includes': [
     'chrome_android_paks.gypi', # Included for the list of pak resources.
@@ skipping 21 matching lines @@
         '../skia/config',
       ],
       'conditions': [
         [ 'order_profiling!=0', {
           'conditions': [
             [ 'OS=="android"', {
               'dependencies': [ '../tools/cygprofile/cygprofile.gyp:cygprofile', ],
             }],
           ],
         }],
-        # TODO(dmikurube): Kill android_use_tcmalloc. http://crbug.com/345554
-        [ '(use_allocator!="none" and use_allocator!="see_use_tcmalloc") or (use_allocator=="see_use_tcmalloc" and android_use_tcmalloc==1)', {
+        [ 'use_allocator!="none"', {
           'dependencies': [
             '../base/allocator/allocator.gyp:allocator', ],
         }],
         ['OS=="android"', {
           'ldflags': [
             # Some android targets still depend on --gc-sections to link.
             # TODO: remove --gc-sections for Debug builds (crbug.com/159847).
             '-Wl,--gc-sections',
           ],
         }],
@@ skipping 78 matching lines @@
         {
           'destination': '<(chrome_android_pak_output_folder)',
           'files': [
             '<@(chrome_android_pak_input_resources)',
           ],
         }
       ],
     },
   ],
 }