Adds browser preferences to configure first-run flow on Windows 8.

chrome/browser/ui/startup/startup_browser_creator_impl.cc

Index: chrome/browser/ui/startup/startup_browser_creator_impl.cc
diff --git a/chrome/browser/ui/startup/startup_browser_creator_impl.cc b/chrome/browser/ui/startup/startup_browser_creator_impl.cc
index ca0e97f30fbaaa825636fa2f1402f35c8b84857b..00204a377ef9fe7d63fe2297aad04b4bba856309 100644
--- a/chrome/browser/ui/startup/startup_browser_creator_impl.cc
+++ b/chrome/browser/ui/startup/startup_browser_creator_impl.cc
@@ -362,8 +362,15 @@ bool StartupBrowserCreatorImpl::Launch(Profile* profile,
     if (process_startup) {
       if (browser_defaults::kOSSupportsOtherBrowsers &&
           !command_line_.HasSwitch(switches::kNoDefaultBrowserCheck)) {
-        if (!chrome::ShowAutolaunchPrompt(profile))
+        // Generally, the default browser prompt should not be shown on first
+        // run. However, when the set-as-default dialog has been suppressed, we
+        // need to allow it.
+        if ((!is_first_run_ ||
+             (browser_creator_ &&
+              browser_creator_->is_set_as_default_dialog_suppressed())) &&
+            !chrome::ShowAutolaunchPrompt(profile)) {

[Ben Goodger (Google), 2012/08/01 18:00:20]

So, the only reason ShowDefaultBrowserPrompt() is called from SBCImpl is that it
needs browsers to have been created for it to work, because it appends an
infobar to the active browser asking for default browser status.

It looks like you're using this as an opportunity to show other UI that isn't in
the browser window. This makes it seem to me to be the wrong place to integrate.
I think this would be better done from ChromeBrowserMain, before SBC is even
invoked (i.e. before we even create any browser windows).

[motek., 2012/08/01 20:44:52]

That other UI (a webUI dlg) is spawned from chrome_browser_main.cc, right after
profile has been created (it needs it). 

Here, I only change the exact condition of showing that bar: if that other UI
was suppressed through master_prefs, we will want the bar on first run. 
In fact, the main reason for connecting that other UI with SBC (through this new
field) is to alter this condition. 

I am not quite sure I am answering your comment. If I somehow missed your point,
please clarify.

           chrome::ShowDefaultBrowserPrompt(profile);
+        }
       }
 #if defined(OS_MACOSX)
       // Check whether the auto-update system needs to be promoted from user