RLZ: remove hard-coded Win || Mac conditions.

chrome/chrome_browser.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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
@@ skipping 2635 matching lines @@
           'sources': [
             # Build the necessary GTM sources
             '../third_party/GTM/Foundation/GTMServiceManagement.h',
             '../third_party/GTM/Foundation/GTMServiceManagement.c',
           ],
           'include_dirs': [
             '../third_party/GTM',
             '../third_party/GTM/Foundation',
           ],
         }],
-        ['OS=="win" or OS=="mac"', {
+        ['enable_rlz==1', {
           'dependencies': [
             '../rlz/rlz.gyp:rlz_lib',
           ],
-        }, {  # 'OS!="win" and OS!="mac"
+        }, {  # enable_rlz!=1
           'sources/': [
             # Exclude all of rlz.
             ['exclude', '^browser/rlz/'],
           ],
         }],
         ['OS=="win"', {
           'include_dirs': [
             '<(DEPTH)/third_party/wtl/include',
           ],
           'dependencies': [
@@ skipping 284 matching lines @@
             'proto_in_dir': '../third_party/cros_system_api/dbus',
             'proto_out_dir': 'chrome/browser/media_transfer_protocol',
           },
           'includes': ['../build/protoc.gypi'],
         },
       ],
      },
     ],
   ],
 }