don't display platform app resources in normal browser windows

chrome/browser/ui/browser_navigator.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/browser_navigator.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/stringprintf.h"
@@ skipping 308 matching lines @@
 // with it.
 bool SwapInPrerender(TabContents* target_contents, const GURL& url) {
   prerender::PrerenderManager* prerender_manager =
       prerender::PrerenderManagerFactory::GetForProfile(
           target_contents->profile());
   WebContents* web_contents = target_contents->web_contents();
   return prerender_manager &&
       prerender_manager->MaybeUsePrerenderedPage(web_contents, url);
 }
 
+// Returns true if |url| is something we should try to avoid showing as a main
+// frame in a normal browser window.
+bool ShouldNotDisplayUrlInBrowser(Profile* profile, const GURL& url) {
+  ExtensionService* service = profile->GetExtensionService();
+  return service && service->ShouldNotDisplayUrlInBrowserTab(url);
+}
+
 }  // namespace
 
 namespace chrome {
 
 NavigateParams::NavigateParams(Browser* a_browser,
                                const GURL& a_url,
                                content::PageTransition a_transition)
     : url(a_url),
       target_contents(NULL),
       source_contents(NULL),
@@ skipping 47 matching lines @@
 
 void Navigate(NavigateParams* params) {
   Browser* source_browser = params->browser;
   if (source_browser)
     params->initiating_profile = source_browser->profile();
   DCHECK(params->initiating_profile);
 
   if (!AdjustNavigateParamsForURL(params))
     return;
 
+  if (ShouldNotDisplayUrlInBrowser(params->initiating_profile, params->url))
+    return;
+
   // The browser window may want to adjust the disposition.
   if (params->disposition == NEW_POPUP &&
       source_browser &&
       source_browser->window()) {
     params->disposition =
         source_browser->window()->GetDispositionForPopupBounds(
             params->window_bounds);
   }
 
   // Adjust disposition for the navigation happending in the sad page of the
@@ skipping 195 matching lines @@
   return !(url.scheme() == chrome::kChromeUIScheme &&
       (url.host() == chrome::kChromeUISettingsHost ||
        url.host() == chrome::kChromeUISettingsFrameHost ||
        url.host() == chrome::kChromeUIExtensionsHost ||
        url.host() == chrome::kChromeUIBookmarksHost ||
        url.host() == chrome::kChromeUISyncPromoHost ||
        url.host() == chrome::kChromeUIUberHost));
 }
 
 }  // namespace chrome