If the 'asan' GYP variable is set to 1 on Mac, do not strip the __asan_init symbol from the binar...

build/common.gypi

 # Copyright (c) 2011 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 1718 matching lines @@
                     }],
                   ],
                 },
                 'postbuild_name': 'Change Mach-O Flags',
                 'action': [
                   '<(change_mach_o_flags_path)',
                   '>@(change_mach_o_flags_options)',
                 ],
               },
             ],
+            'conditions': [
+              ['asan==1', {
+                'variables': {
+                 'asan_saves_file': 'asan.saves',
+                },
+                'xcode_settings': {
+                  'CHROMIUM_STRIP_SAVE_FILE': '<(asan_saves_file)'
+                },
+              }],
+            ],
           }],
           ['_type=="executable" and release_valgrind_build==0', {
             # Turn on position-independence (ASLR) for executables. When PIE
             # is on for the Chrome executables, the framework will also be
             # subject to ASLR.
             # Don't do this when building for Valgrind because Valgrind
             # doesn't understand slide. TODO: Make Valgrind on Mac OS X
             # understand slide, and get rid of the Valgrind check.
             'xcode_settings': {
               'OTHER_LDFLAGS': [
@@ skipping 263 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }