Improve the default browser settings dialog for Win10

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 787e60532a3dbe5005fd7fec78e77f5c2b0700d3..64e58482082f5bb02e5d327ae6408a0761003501 100644
--- a/chrome/installer/util/shell_util.h
+++ b/chrome/installer/util/shell_util.h
@@ -445,11 +445,15 @@ class ShellUtil {
                                 const base::FilePath& chrome_exe,
                                 bool elevate_if_not_admin);
 
-  // Shows and waits for the Windows 8 "How do you want to open webpages?"
+  // Windows 8: Shows and waits for the "How do you want to open webpages?"
   // dialog if Chrome is not already the default HTTP/HTTPS handler. Also does
   // XP-era registrations if Chrome is chosen or was already the default. Do
   // not use on pre-Win8 OSes.
   //
+  // Windows 10: The associations dialog cannot be launched so the settings
+  // dialog focused on default apps is launched. The function does not wait
+  // in this case.
+  //
   // |dist| gives the type of browser distribution currently in use.
   // |chrome_exe| The chrome.exe path to register as default browser.
   static bool ShowMakeChromeDefaultSystemUI(BrowserDistribution* dist,