Ensure that on Windows 7, relaunching the browser via chrome://restart or changing about:flags rela…

win8/metro_driver/chrome_app_view_ash.cc

Index: win8/metro_driver/chrome_app_view_ash.cc
diff --git a/win8/metro_driver/chrome_app_view_ash.cc b/win8/metro_driver/chrome_app_view_ash.cc
index 2f615d3d8001fc3363a30eb053532fe9e80a2cc8..0d1ea8b2190982bbc3a65cd77dea2419a77871b4 100644
--- a/win8/metro_driver/chrome_app_view_ash.cc
+++ b/win8/metro_driver/chrome_app_view_ash.cc
@@ -971,6 +971,9 @@ void ChromeAppViewAsh::OnMetroExit(MetroTerminateMethod method) {
     if (ui_channel_)
       ui_channel_->Close();
 
+    HWND core_window = core_window_hwnd();
+    ::PostMessage(core_window, WM_CLOSE, 0, 0);
+

[Shrikant Kelkar, 2014/09/12 21:53:29]

Instead of using multiple close methods may be merge it into above
TERMINATE_USING_KEY_SEQUENCE? Or do it during app_exit somewhere?

[ananta, 2014/09/12 23:49:58]

This function is fragile and the ordering of statements causes timing and
related failures. Doing it in app exit will not work on Windows 8 as that is 
a windows object providing this functionality.

     globals.app_exit->Exit();
   }
 }