Handle opening URLs when there is no window open....

chrome/browser/app_controller_mac.mm

 // Copyright (c) 2009 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.
 
 #import "chrome/browser/app_controller_mac.h"
 
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/app/chrome_dll_resource.h"
@@ skipping 335 matching lines @@
 // the ProcessSingleton, and it calls BrowserInit. It's best to bottleneck the
 // openings through that for uniform handling.
 
 - (void)openURLs:(const std::vector<GURL>&)urls {
   if (pendingURLs_.get()) {
     // too early to open; save for later
     pendingURLs_->insert(pendingURLs_->end(), urls.begin(), urls.end());
     return;
   }
 
+  Browser* browser = BrowserList::GetLastActive();
+  // if no browser window exists then create one with no tabs to be filled in
+  if (!browser) {
+    browser = Browser::Create([self defaultProfile]);
+    browser->window()->Show();    

[Scott Hess - ex-Googler, 2009/05/28 19:34:22]

Does the Show() at this point cause any jankiness?

+  }
+
   CommandLine dummy((std::wstring()));
   BrowserInit::LaunchWithProfile launch(std::wstring(), dummy);
-  launch.OpenURLsInBrowser(BrowserList::GetLastActive(), false, urls);
+  launch.OpenURLsInBrowser(browser, false, urls);
 }
 
 - (void)openPendingURLs {
   // Since the existence of pendingURLs_ is a flag that it's too early to
   // open URLs, we need to reset pendingURLs_.
   std::vector<GURL> urls;
   swap(urls, *pendingURLs_);
   pendingURLs_.reset();
 
   if (urls.size())
@@ skipping 108 matching lines @@
                name:kUserClosedAboutNotification
              object:aboutController_.get()];
   }
   if (![[aboutController_ window] isVisible])
     [[aboutController_ window] center];
   [aboutController_ showWindow:self];
 #endif
 }
 
 @end