ExtensionNavigationThrottle: No platform apps in normal tabs.

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/macros.h"
@@ skipping 32 matching lines @@
 #include "components/signin/core/account_id/account_id.h"
 #endif
 
 #if defined(USE_AURA)
 #include "ui/aura/window.h"
 #endif
 
 #if BUILDFLAG(ENABLE_EXTENSIONS)
 #include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/web_applications/web_app.h"
-#include "extensions/browser/extension_registry.h"
-#include "extensions/common/extension.h"
-#include "extensions/common/extension_set.h"
 #endif
 
 using content::GlobalRequestID;
 using content::NavigationController;
 using content::WebContents;
 
 class BrowserNavigatorWebContentsAdoption {
  public:
   static void AttachTabHelpers(content::WebContents* contents) {
     TabHelpers::AttachTabHelpers(contents);
@@ skipping 348 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 BUILDFLAG(ENABLE_EXTENSIONS)
-  const extensions::Extension* extension =
-    extensions::ExtensionRegistry::Get(params->initiating_profile)->
-        enabled_extensions().GetExtensionOrAppByURL(params->url);
-  // Platform apps cannot navigate. Block the request.
-  if (extension && extension->is_platform_app())
-    params->url = GURL(chrome::kExtensionInvalidRequestURL);
-#endif
-
   // The browser window may want to adjust the disposition.
   if (params->disposition == WindowOpenDisposition::NEW_POPUP &&
       source_browser && source_browser->window()) {
     params->disposition =
         source_browser->window()->GetDispositionForPopupBounds(
             params->window_bounds);
   }
 
   params->browser = GetBrowserForDisposition(params);
   if (!params->browser)
@@ skipping 230 matching lines @@
   bool reverse_on_redirect = false;
   content::BrowserURLHandler::GetInstance()->RewriteURLIfNecessary(
       &rewritten_url, browser_context, &reverse_on_redirect);
 
   // Some URLs are mapped to uber subpages. Do not allow them in incognito.
   return !(rewritten_url.scheme_piece() == content::kChromeUIScheme &&
            rewritten_url.host_piece() == chrome::kChromeUIUberHost);
 }
 
 }  // namespace chrome