Turn on UseLibraryDependencyInputs for browser_tests to enable incremental linking.

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.
 {
   'targets': [
     {
       # This target contains mocks and test utilities that don't belong in
       # production libraries but are used by more than one test executable.
       'target_name': 'test_support_common',
       'type': 'static_library',
@@ skipping 171 matching lines @@
         'browser/signin/fake_profile_oauth2_token_service.cc',
         'browser/signin/fake_profile_oauth2_token_service.h',
         'browser/signin/fake_signin_manager.cc',
         'browser/signin/fake_signin_manager.h',
         'browser/ssl/ssl_client_auth_requestor_mock.cc',
         'browser/ssl/ssl_client_auth_requestor_mock.h',
         'browser/storage_monitor/test_media_transfer_protocol_manager_linux.cc',
         'browser/storage_monitor/test_media_transfer_protocol_manager_linux.h',
         'browser/storage_monitor/test_storage_monitor.cc',
         'browser/storage_monitor/test_storage_monitor.h',
+        'browser/sync/profile_sync_service_mock.cc',
+        'browser/sync/profile_sync_service_mock.h',
         'browser/ui/browser.h',
         'browser/ui/cocoa/find_bar/find_bar_host_unittest_util_cocoa.mm',
         'browser/ui/cocoa/run_loop_testing.h',
         'browser/ui/cocoa/run_loop_testing.mm',
         'browser/ui/find_bar/find_bar_host_unittest_util.h',
         'browser/ui/fullscreen/fullscreen_controller_state_test.cc',
         'browser/ui/fullscreen/fullscreen_controller_state_test.h',
         'browser/ui/fullscreen/fullscreen_controller_state_tests.h',
         'browser/ui/fullscreen/fullscreen_controller_test.cc',
         'browser/ui/fullscreen/fullscreen_controller_test.h',
@@ skipping 231 matching lines @@
         '../sync/sync.gyp:sync',
         '../testing/gmock.gyp:gmock',
         '../testing/gtest.gyp:gtest',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         'browser/sync/glue/session_sync_test_helper.cc',
         'browser/sync/glue/session_sync_test_helper.h',
-        'browser/sync/profile_sync_service_mock.cc',
-        'browser/sync/profile_sync_service_mock.h',
         'test/base/run_all_unittests.cc',
       ],
       'conditions': [
         ['toolkit_uses_gtk == 1', {
           'dependencies': [
             # Needed for the following #include chain:
             #   test/base/run_all_unittests.cc
             #   test/base/chrome_test_suite.h
             #   gtk/gtk.h
             '../build/linux/system.gyp:gtk',
@@ skipping 2473 matching lines @@
             'browser/ui/app_list/test/fake_profile_store.cc',
             'browser/ui/app_list/test/fake_profile_store.h',
             'browser/ui/app_list/test/fast_show_pickler_unittest.cc',
             'browser/ui/views/app_list/win/app_list_win_unittest.cc',
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }