Remove the OOP PDF flag

chrome/chrome_tests_unit.gypi

 # Copyright 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': {
     'chrome_unit_tests_sources': [
       '../components/autofill/content/renderer/test_password_autofill_agent.cc',
       '../components/autofill/content/renderer/test_password_autofill_agent.h',
       '../components/autofill/content/renderer/test_password_generation_agent.cc',
       '../components/autofill/content/renderer/test_password_generation_agent.h',
@@ skipping 1701 matching lines @@
         'browser/ui/exclusive_access/fullscreen_controller_state_test.cc',
         'browser/ui/exclusive_access/fullscreen_controller_state_test.h',
         'browser/ui/exclusive_access/fullscreen_controller_state_tests.h',
         'browser/ui/exclusive_access/fullscreen_controller_test.cc',
         'browser/ui/exclusive_access/fullscreen_controller_test.h',
         'browser/ui/find_bar/find_bar_host_unittest_util.h',
         'browser/ui/login/login_prompt_test_utils.cc',
         'browser/ui/login/login_prompt_test_utils.h',
         'browser/ui/passwords/manage_passwords_ui_controller_mock.cc',
         'browser/ui/passwords/manage_passwords_ui_controller_mock.h',
-        'browser/ui/pdf/pdf_browsertest_base.cc',
-        'browser/ui/pdf/pdf_browsertest_base.h',
         'browser/ui/test/test_confirm_bubble_model.cc',
         'browser/ui/test/test_confirm_bubble_model.h',
         'browser/ui/toolbar/test_toolbar_action_view_controller.cc',
         'browser/ui/toolbar/test_toolbar_action_view_controller.h',
         'browser/ui/views/find_bar_host_unittest_util_views.cc',
         'browser/ui/views/toolbar/browser_action_test_util_views.cc',
         'browser/ui/website_settings/mock_permission_bubble_request.cc',
         'browser/ui/website_settings/mock_permission_bubble_request.h',
         'browser/ui/webui/signin/login_ui_test_utils.cc',
         'browser/ui/webui/signin/login_ui_test_utils.h',
@@ skipping 1047 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }