Hide the main window when Set-As-Default dialog is present.

chrome/browser/ui/startup/startup_browser_creator_impl.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/startup/startup_browser_creator_impl.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/compiler_specific.h"
 #include "base/environment.h"
@@ skipping 763 matching lines @@
     first_tab = false;
   }
   if (!chrome::GetActiveWebContents(browser)) {
     // TODO: this is a work around for 110909. Figure out why it's needed.
     if (!browser->tab_count())
       chrome::AddBlankTab(browser, true);
     else
       chrome::ActivateTabAt(browser, 0, false);
   }
 
-  browser->window()->Show();
-  // TODO(jcampan): http://crbug.com/8123 we should not need to set the initial
-  //                focus explicitly.
-  chrome::GetActiveWebContents(browser)->GetView()->SetInitialFocus();
+  // The default behaviour is to show the window, as expressed by the default
+  // value of StartupBrowserCreated::show_main_browser_window_. If this was set
+  // to true ahead of this place, it means another task must have been spawned
+  // to take care of that.
+  if (!browser_creator_ || browser_creator_->show_main_browser_window()) {
+    browser->window()->Show();
+    // TODO(jcampan): http://crbug.com/8123 we should not need to set the
+    //                initial focus explicitly.
+    chrome::GetActiveWebContents(browser)->GetView()->SetInitialFocus();
+  }
 
   return browser;
 }
 
 void StartupBrowserCreatorImpl::AddInfoBarsIfNecessary(
     Browser* browser,
     chrome::startup::IsProcessStartup is_process_startup) {
   if (!browser || !profile_ || browser->tab_count() == 0)
     return;
 
@@ skipping 126 matching lines @@
         // New:
         prefs->GetString(prefs::kHomePage),
         prefs->GetBoolean(prefs::kHomePageIsNewTabPage),
         prefs->GetBoolean(prefs::kShowHomeButton),
         // Backup:
         backup_homepage,
         backup_homepage_is_ntp,
         backup_show_home_button));
   }
 }