mac: Don't build with debug information on the trybots.

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 882 matching lines @@
       }],
       ['enable_flapper_hacks==1', {
         'defines': ['ENABLE_FLAPPER_HACKS=1'],
       }],
       ['configuration_policy==1', {
         'defines': ['ENABLE_CONFIGURATION_POLICY'],
       }],
       ['fastbuild!=0', {
 
         'conditions': [
-          # For Windows, we don't genererate debug information.
-          ['OS=="win"', {
+          # For Windows and Mac, we don't genererate debug information.
+          ['OS=="win" or OS=="mac"', {
             'msvs_settings': {
               'VCLinkerTool': {
                 'GenerateDebugInformation': 'false',
               },
               'VCCLCompilerTool': {
                 'DebugInformationFormat': '0',
               }
-            }
+            },
+            'xcode_settings': {
+              'GCC_GENERATE_DEBUGGING_SYMBOLS': 'NO',
+            },
           }, { # else: OS != "win", generate less debug information.
             'variables': {
               'debug_extra_cflags': '-g1',
             },
           }],
           # Clang creates chubby debug information, which makes linking very
           # slow. For now, don't create debug information with clang.  See
           # http://crbug.com/70000
           ['OS=="linux" and clang==1', {
             'variables': {
@@ skipping 1467 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',
   },
 }