Set framework -install_name to rpath for EarlGrey and OCHamcrest.

ios/web/ios_web_shell_tests.gyp

 # Copyright 2016 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,
   },
   'targets': [
     {
@@ skipping 33 matching lines @@
       'includes': [
         'ios_web_shell_exe.gypi',
       ],
       'link_settings': {
         'libraries': [
           'XCTest.framework',
         ],
       },
       'xcode_settings': {
         'INFOPLIST_FILE': 'shell/test/Host-Info.plist',
+        'OTHER_LDFLAGS': [
+          '-Xlinker', '-rpath', '-Xlinker', '@executable_path/Frameworks',
+          '-Xlinker', '-rpath', '-Xlinker', '@loader_path/Frameworks'
+        ]
       },
       'dependencies': [
         '<(DEPTH)/ios/third_party/earl_grey/earl_grey.gyp:EarlGrey',
         'ios_web.gyp:ios_web_test_support',
       ],
       'sources': [
         'public/test/http_server_util.h',
         'public/test/http_server_util.mm',
         'shell/test/navigation_test_util.h',
         'shell/test/navigation_test_util.mm',
@@ skipping 19 matching lines @@
           'action': [
             'ditto',
             '${BUILT_PRODUCTS_DIR}/EarlGrey.framework',
             '${BUILT_PRODUCTS_DIR}/<(_target_name).app/Frameworks/EarlGrey.framework',
           ],
         },
       ],
     },
   ],
 }