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 ccdb1d142cc548641b501619026eaa3b0df4fab9..90e0125f0090cb19c0a9976db9d2662b47856eb1 100644
--- a/chrome/installer/util/shell_util.h
+++ b/chrome/installer/util/shell_util.h
@@ -409,6 +409,19 @@ class ShellUtil {
   // Windows prior to Windows 8.
   static bool CanMakeChromeDefaultUnattended();
 
+  enum InteractiveSetDefaultMode {
+    // 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 InteractiveSetDefaultMode GetInteractiveSetDefaultMode();
+
   // Returns the DefaultState of Chrome for HTTP and HTTPS and updates the
   // default browser beacons as appropriate.
   static DefaultState GetChromeDefaultState();