Browser watcher first installment.

components/components_tests.gyp

Index: components/components_tests.gyp
diff --git a/components/components_tests.gyp b/components/components_tests.gyp
index 6baf3f4f889bc695e871bb1466451e47dde3d653..7f99ece495404940d15c3ff45e2de608d07774c5 100644
--- a/components/components_tests.gyp
+++ b/components/components_tests.gyp
@@ -72,6 +72,7 @@
             'bookmarks/browser/bookmark_index_unittest.cc',
             'bookmarks/browser/bookmark_model_unittest.cc',
             'bookmarks/browser/bookmark_utils_unittest.cc',
+            'browser_watcher/watcher_win_unittest.cc',
             'crash/app/crash_keys_win_unittest.cc',
             'captive_portal/captive_portal_detector_unittest.cc',
             'cloud_devices/common/cloud_devices_urls_unittest.cc',
@@ -480,6 +481,12 @@
                 'components.gyp:constrained_window',
               ]
             }],
+            ['OS=="win"', {
+              'dependencies': [
+                 # Dependencies of browser_watcher, windows only.
+                 'components.gyp:browser_watcher_lib',
+              ]
+            }],
             ['OS=="win" and component!="shared_library" and win_use_allocator_shim==1', {
               'dependencies': [
                 '<(DEPTH)/base/allocator/allocator.gyp:allocator',