mac: Don't require DYLD_LIBRARY_PATH to be set when using the shared build.

chrome/chrome.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': {
     'chromium_code': 1,
 
     'variables': {
       'version_py_path': 'tools/build/version.py',
       'version_path': 'VERSION',
@@ skipping 465 matching lines @@
                 # Specify CHROMIUM_STRIP_SAVE_FILE directly to Xcode.
                 'STRIPFLAGS': '-s $(CHROMIUM_STRIP_SAVE_FILE)',
               },
             }],
             ['asan==1', {
               'xcode_settings': {
                 # Override the outer definition of CHROMIUM_STRIP_SAVE_FILE.
                 'CHROMIUM_STRIP_SAVE_FILE': 'app/app_asan.saves',
               },
             }],
+            ['component=="shared_library"', {
+              'xcode_settings': {
+                'LD_RUNPATH_SEARCH_PATHS': [
+                  # Get back from Chromium.app/Contents/Versions/V/
+                  #                                    Helper.app/Contents/MacOS
+                  '@loader_path/../../../../../../..',
+                ],
+              },
+            }],
           ],
         },  # target helper_app
         {
           # A library containing the actual code for the app mode app, shared
           # by unit tests.
           'target_name': 'app_mode_app_support',
           'type': 'static_library',
           'variables': { 'enable_wexit_time_destructors': 1, },
           'product_name': 'app_mode_app_support',
           'dependencies': [
@@ skipping 550 matching lines @@
           'sources': [
             'browser/safe_browsing/signature_util.h',
             'browser/safe_browsing/signature_util_win.cc',
             'tools/safe_browsing/sb_sigutil.cc',
           ],
         },
       ]},  # 'targets'
     ],  # OS=="win"
   ],  # 'conditions'
 }