Disable registering, unregistering, and setting default browser...

chrome/browser/browser_init.cc

Index: chrome/browser/browser_init.cc
===================================================================
--- chrome/browser/browser_init.cc	(revision 39907)
+++ chrome/browser/browser_init.cc	(working copy)
@@ -40,6 +40,7 @@
 #include "chrome/common/pref_names.h"
 #include "chrome/common/result_codes.h"
 #include "chrome/common/url_constants.h"
+#include "chrome/installer/util/browser_distribution.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "grit/locale_settings.h"
@@ -193,6 +194,10 @@
   virtual void Run() {
     if (ShellIntegration::IsDefaultBrowser())
       return;
+#if defined(OS_WIN)
+    if (!BrowserDistribution::GetDistribution()->CanSetAsDefault())
+      return;

[mattm, 2010/02/26 23:53:50]

could do this check before the IsDefaultBrowser call (not a huge deal, but I
recall IsDefaultBrowser being slightly expensive)

[huanr, 2010/02/27 00:02:34]

However we should optimize for the more common case, non-sxs default browser.

+#endif
 
     ChromeThread::PostTask(
         ChromeThread::UI, FROM_HERE, new NotifyNotDefaultBrowserTask());