While trying to enable webview sign-in by default, I found a bunch of issues

chrome/chrome_tests.gypi

 # Copyright 2013 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': {
     'chrome_browser_extensions_test_support_sources': [
       # A list of sources which is shared between different browser tests.
       'browser/apps/app_browsertest_util.cc',
       'browser/apps/app_browsertest_util.h',
       'browser/extensions/browsertest_util.cc',
@@ skipping 567 matching lines @@
       'browser/ui/autofill/mock_address_validator.cc',
       'browser/ui/autofill/mock_address_validator.h',
       'browser/ui/autofill/password_generation_popup_view_browsertest.cc',
       'browser/ui/autofill/password_generation_popup_view_tester.h',
       'browser/ui/autofill/test_generated_credit_card_bubble_view.cc',
       'browser/ui/autofill/test_generated_credit_card_bubble_view.h',
       'browser/ui/autofill/test_generated_credit_card_bubble_controller.cc',
       'browser/ui/autofill/test_generated_credit_card_bubble_controller.h',
       'browser/ui/blocked_content/popup_blocker_browsertest.cc',
       'browser/ui/bookmarks/bookmark_browsertest.cc',
+      'browser/ui/bookmarks/bookmark_bubble_sign_in_delegate_browsertest.cc',
       'browser/ui/browser_browsertest.cc',
       'browser/ui/browser_close_browsertest.cc',
       'browser/ui/browser_command_controller_browsertest.cc',
       'browser/ui/browser_navigator_browsertest.cc',
       'browser/ui/browser_navigator_browsertest.h',
       'browser/ui/browser_navigator_browsertest_chromeos.cc',
       'browser/ui/browser_tabrestore_browsertest.cc',
       'browser/ui/cocoa/accelerators_cocoa_browsertest.mm',
       'browser/ui/cocoa/applescript/browsercrapplication+applescript_test.mm',
       'browser/ui/cocoa/applescript/window_applescript_test.mm',
@@ skipping 1513 matching lines @@
           ],
         }, { # chromeos==1
           'sources!': [
             '../apps/load_and_launch_browsertest.cc',
             'browser/printing/cloud_print/test/cloud_print_policy_browsertest.cc',
             'browser/printing/cloud_print/test/cloud_print_proxy_process_browsertest.cc',
             # chromeos does not support profile list avatar menu
             'browser/profiles/profile_list_desktop_browsertest.cc',
             'browser/service_process/service_process_control_browsertest.cc',
             'browser/signin/signin_browsertest.cc',
+            # bookmark sign in promo not used on chromeos
+            'browser/ui/bookmarks/bookmark_bubble_sign_in_delegate_browsertest.cc',
             # chromeos does not use cross-platform panels
             'browser/ui/panels/panel_extension_browsertest.cc',
             # chromeos does not use the desktop user manager
             'browser/ui/webui/signin/user_manager_ui_browsertest.cc',
           ],
           'dependencies': [
             '../dbus/dbus.gyp:dbus_test_support',
             '../build/linux/system.gyp:dbus',
             '../ui/login/login.gyp:login_resources',
           ],
@@ skipping 159 matching lines @@
         }],
         ['os_posix == 0 or chromeos == 1', {
           'sources!': [
             'common/time_format_browsertest.cc',
           ],
         }],
         ['OS=="android"', {
           'sources!': [
             'browser/policy/cloud/component_cloud_policy_browsertest.cc',
             'browser/prefs/pref_hash_browsertest.cc',
+            'browser/ui/bookmarks/bookmark_bubble_sign_in_delegate_browsertest.cc',
           ],
         }],
         ['os_posix == 1 and OS != "mac" and OS != "android"', {
           'conditions': [
             ['use_allocator!="none"', {
               'dependencies': [
                 '../base/allocator/allocator.gyp:allocator',
               ],
             }],
           ],
@@ skipping 962 matching lines @@
             ['enable_webrtc==1', {
               'dependencies': [
                 '../third_party/libjingle/libjingle.gyp:libjingle_webrtc'
               ]
             }],
           ],
         }]
     }],
   ],  # 'conditions'
 }