jankometer: Use the stub implementation for non-Windows.

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index e6cdbc8934b4d883448d9dd541f1b1a3f12e4d35..d7e5a045316b1350b96a1502b08012e49b9a5601 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -1006,10 +1006,9 @@
         'browser/invalidation/ticl_invalidation_service.h',
         'browser/io_thread.cc',
         'browser/io_thread.h',
-        'browser/jankometer.cc',
         'browser/jankometer.h',
-        'browser/jankometer_android.cc',
-        'browser/jankometer_mac.cc',
+        'browser/jankometer_stub.cc',
+        'browser/jankometer_win.cc',
         'browser/jumplist_updater_win.cc',
         'browser/jumplist_updater_win.h',
         'browser/jumplist_win.cc',
@@ -3327,7 +3326,6 @@
             'browser/bookmarks/bookmark_html_writer.cc',
             'browser/ssl/ssl_add_certificate.cc',
 
-            'browser/jankometer.cc',
             'browser/sync/sync_global_error.cc',
             'browser/sync/sync_global_error.h',
 
@@ -3440,7 +3438,6 @@
           'sources!': [
             'browser/automation/automation_provider_list_generic.cc',
             'browser/first_run/upgrade_util.cc',
-            'browser/jankometer.cc',
             'browser/lifetime/application_lifetime_stub.cc',
             'browser/renderer_context_menu/spellchecker_submenu_observer_hunspell.cc',
           ],
@@ -3505,6 +3502,7 @@
           ],
           'sources!': [
             'browser/first_run/first_run_dialog.h',
+            'browser/jankometer_stub.cc',
             'browser/lifetime/application_lifetime_stub.cc',
             'browser/metrics/machine_id_provider_stub.cc',
             'browser/prefs/tracked/pref_hash_calculator_helper_stub.cc',