Fix report symbolization on swarming bots.

chrome/browser_tests.isolate

 # 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.
 {
   'conditions': [
     ['OS=="linux"', {
       'variables': {
         'command': [
           '../testing/xvfb.py',
           '<(PRODUCT_DIR)',
@@ skipping 178 matching lines @@
         ],
       },
     }],
     ['OS=="win" and (fastbuild==0 or fastbuild==1)', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/browser_tests.exe.pdb',
         ],
       },
     }],
+    ['OS=="mac" and asan==1', {
+      'variables': {
+        'files': [
+          '<(PRODUCT_DIR)/browser_tests.dSYM/',
+        ],
+      },
+    }],
     ['OS=="win" and libpeer_target_type=="loadable_module"', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/libpeerconnection.dll',
         ],
       },
     }],
     ['chromeos==1', {
       'variables': {
         'files': [
@@ skipping 15 matching lines @@
           'browser/chromeos/login/test/https_forwarder.py',
         ],
       },
     }],
   ],
   'includes': [
     '../base/base.isolate',
     'chrome.isolate',
   ],
 }