[M54 merge] Lock down creation of blob:chrome-extension URLs from non-extension processes.

content/browser/site_instance_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_SITE_INSTANCE_IMPL_H_
 #define CONTENT_BROWSER_SITE_INSTANCE_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 102 matching lines @@
 
   // Get the effective URL for the given actual URL.  This allows the
   // ContentBrowserClient to override the SiteInstance's site for certain URLs.
   // For example, Chrome uses this to replace hosted app URLs with extension
   // hosts.
   // Only public so that we can make a consistent process swap decision in
   // RenderFrameHostManager.
   static GURL GetEffectiveURL(BrowserContext* browser_context,
                               const GURL& url);
 
-  // Returns true if pages loaded from |effective_url| ought to be handled only
-  // by a renderer process isolated from other sites. If --site-per-process is
-  // on the command line, this is true for all sites. In other site isolation
-  // modes, only a subset of sites will require dedicated processes.
-  //
-  // |effective_url| must be an effective URL.
+  // Returns true if pages loaded from |url| ought to be handled only by a
+  // renderer process isolated from other sites. If --site-per-process is on the
+  // command line, this is true for all sites. In other site isolation modes,
+  // only a subset of sites will require dedicated processes.
   static bool DoesSiteRequireDedicatedProcess(BrowserContext* browser_context,
-                                              const GURL& effective_url);
+                                              const GURL& url);
 
  private:
   friend class BrowsingInstance;
   friend class SiteInstanceTestBrowserClient;
 
   // Create a new SiteInstance.  Only BrowsingInstance should call this
   // directly; clients should use Create() or GetRelatedSiteInstance() instead.
   explicit SiteInstanceImpl(BrowsingInstance* browsing_instance);
 
   ~SiteInstanceImpl() override;
@@ skipping 45 matching lines @@
   bool is_default_subframe_site_instance_;
 
   base::ObserverList<Observer, true> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(SiteInstanceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SITE_INSTANCE_IMPL_H_