Support for interactive set-chrome-as-default in Windows.

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 85e5fbd7d0f9e8123a5e2b2157810f3ad4ede95f..d590ec6d5183113fd7efcca137d1546d926e0ab9 100644
--- a/chrome/installer/util/shell_util.h
+++ b/chrome/installer/util/shell_util.h
@@ -237,6 +237,14 @@ class ShellUtil {
                                 const string16& chrome_exe,
                                 bool elevate_if_not_admin);
 
+  // Shows to the user a system dialog where Chrome can be set as the
+  // default browser. This is intended for Windows 8 and above only.
+  // This is a blocking call.
+  //
+  // Parameters as MakeChromeDefault.
+  static bool ShowMakeChromeDefaultSystemUI(BrowserDistribution* dist,
+                                            const string16& chrome_exe);
+
   // Make Chrome the default application for a protocol.
   // chrome_exe: The chrome.exe path to register as default browser.
   // protocol: The protocol to register as the default handler for.