Fix registerProtocolHandler implementation on Windows 8 and 10.

chrome/installer/util/shell_util.h

Index: chrome/installer/util/shell_util.h
diff --git a/chrome/installer/util/shell_util.h b/chrome/installer/util/shell_util.h
index c169018f9ad111794e13f82d7ebcd8b1a93dc4bb..06c5b861f6e2c249b0e0c26f4cbba1bd353fa592 100644
--- a/chrome/installer/util/shell_util.h
+++ b/chrome/installer/util/shell_util.h
@@ -408,6 +408,19 @@ class ShellUtil {
   // Windows prior to Windows 8.
   static bool CanMakeChromeDefaultUnattended();
 
+  enum SetDefaultInteractiveMode {

[grt (UTC plus 2), 2016/04/15 18:47:26]

wdyt of InteractiveSetDefaultMode so that this doesn't sound like it's going to
run off and do something (SetFoo)? the method below could be
GetInteractiveSetDefaultMode, which sounds a little better to my eyes than
GetSetFoo.

[Patrick Monette, 2016/04/15 21:35:42]

I agree. Done.

+    // The intent picker is opened with the different choices available to the
+    // user.
+    INTENT_PICKER,
+    // The Windows default apps settings page is opened with the current default
+    // app focused.
+    SYSTEM_SETTINGS,
+  };
+
+  // Returns the interactive mode that should be used to set the default browser
+  // or default protocol client on Windows 8+.
+  static SetDefaultInteractiveMode GetSetDefaultInteractiveMode();
+
   // Returns the DefaultState of Chrome for HTTP and HTTPS and updates the
   // default browser beacons as appropriate.
   static DefaultState GetChromeDefaultState();