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

chrome/browser/ui/webui/options2/browser_options_handler2.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/options2/browser_options_handler2.h"
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 661 matching lines @@
 
     base::FundamentalValue enabled(will_launch_at_login);
     web_ui()->CallJavascriptFunction("BrowserOptions.updateAutoLaunchState",
                                      enabled);
   }
 #endif
 }
 
 void BrowserOptionsHandler::UpdateDefaultBrowserState() {
   // Check for side-by-side first.
-  if (!ShellIntegration::CanSetAsDefaultBrowser()) {
+  if (ShellIntegration::CanSetAsDefaultBrowser() ==
+          ShellIntegration::CHANGE_DEFAULT_NOT_ALLOWED) {
     SetDefaultBrowserUIString(IDS_OPTIONS_DEFAULTBROWSER_SXS);
     return;
   }
 
 #if defined(OS_MACOSX)
   ShellIntegration::DefaultWebClientState state =
       ShellIntegration::IsDefaultBrowser();
   int status_string_id;
   if (state == ShellIntegration::IS_DEFAULT_WEB_CLIENT)
     status_string_id = IDS_OPTIONS_DEFAULTBROWSER_DEFAULT;
@@ skipping 46 matching lines @@
   else if (state == ShellIntegration::STATE_NOT_DEFAULT)
     status_string_id = IDS_OPTIONS_DEFAULTBROWSER_NOTDEFAULT;
   else if (state == ShellIntegration::STATE_UNKNOWN)
     status_string_id = IDS_OPTIONS_DEFAULTBROWSER_UNKNOWN;
   else
     return;  // Still processing.
 
   SetDefaultBrowserUIString(status_string_id);
 }
 
+bool BrowserOptionsHandler::IsInteractiveSetDefaultPermitted() {
+  return true;  // This is UI so we can allow it.
+}
+
 void BrowserOptionsHandler::SetDefaultBrowserUIString(int status_string_id) {
   scoped_ptr<Value> status_string(Value::CreateStringValue(
       l10n_util::GetStringFUTF16(status_string_id,
                                  l10n_util::GetStringUTF16(IDS_PRODUCT_NAME))));
 
   scoped_ptr<Value> is_default(Value::CreateBooleanValue(
       status_string_id == IDS_OPTIONS_DEFAULTBROWSER_DEFAULT));
 
   scoped_ptr<Value> can_be_default(Value::CreateBooleanValue(
       !default_browser_policy_.IsManaged() &&
@@ skipping 662 matching lines @@
 }
 
 void BrowserOptionsHandler::SetupSSLConfigSettings() {
   base::FundamentalValue checked(rev_checking_enabled_.GetValue());
   base::FundamentalValue disabled(rev_checking_enabled_.IsManaged());
   web_ui()->CallJavascriptFunction(
       "BrowserOptions.setCheckRevocationCheckboxState", checked, disabled);
 }
 
 }  // namespace options2