[Notification] Make HTML5 Notification use ActionCenter on Windows 10, behind Flags.

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 90f01ac0cf674b762c14338a82aba76add6d5625..b424a6186a71c57e489c8c90eba57e47fb3c2c65 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -2213,6 +2213,8 @@
       'browser/notifications/notification_platform_bridge.h',
       'browser/notifications/notification_platform_bridge_mac.h',
       'browser/notifications/notification_platform_bridge_mac.mm',
+      'browser/notifications/notification_platform_bridge_win.cc',
+      'browser/notifications/notification_platform_bridge_win.h',
       'browser/notifications/notification_ui_manager.h',
       'browser/notifications/notifier_state_tracker.cc',
       'browser/notifications/notifier_state_tracker.h',
@@ -3920,6 +3922,7 @@
                 'dwmapi.lib',
                 'ndfapi.lib',
                 'pdh.lib',
+                'runtimeobject.lib',

[chrisha, 2016/06/02 21:14:10]

Is this safe for all versions of Windows that we still support? Will it
introduce a dependency on a DLL that doesn't exist on all platforms? etc

                 'wtsapi32.lib',
               ],
             },
@@ -3936,6 +3939,7 @@
                   'dwmapi.lib',
                   'ndfapi.lib',
                   'pdh.lib',
+                  'runtimeobject.lib',
                   'wtsapi32.lib',
                 ],
               },