Make gles2_conform_support depend on allocator.gyp:allocator when necessary

gpu/gles2_conform_support/gles2_conform_support.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': {
     # These are defined here because we want to be able to compile them on
     # the buildbots without needed the OpenGL ES 2.0 conformance tests
     # which are not open source.
     'bootstrap_sources_native': [
@@ skipping 96 matching lines @@
       'dependencies': [
         'egl_native',
         '../../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
         '../../gpu/gpu.gyp:gles2_c_lib_nocheck',
         '../../third_party/expat/expat.gyp:expat',
       ],
       'conditions': [
         ['toolkit_uses_gtk == 1', {
           'dependencies': ['../../build/linux/system.gyp:gtk'],
         }],
+        # See http://crbug.com/162998#c4 for why this is needed.
+        ['OS=="linux" and linux_use_tcmalloc==1', {
+          'dependencies': [
+            '../../base/allocator/allocator.gyp:allocator',
+          ],
+        }],
       ],
       'defines': [
         'GLES2_CONFORM_SUPPORT_ONLY',
         'GTF_GLES20',
         'EGLAPI=',
         'EGLAPIENTRY=',
       ],
       'sources': [
         '<@(bootstrap_sources_native)',
         'gles2_conform_support.c'
       ],
     },
   ],
 }