PlzNavigate: ensure we don't create extra-processes for ServiceWorkers

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 20 matching lines @@
 
     // Called when the renderer process of this SiteInstance has exited.
     virtual void RenderProcessGone(SiteInstanceImpl* site_instance) = 0;
   };
 
   static scoped_refptr<SiteInstanceImpl> Create(
       BrowserContext* browser_context);
   static scoped_refptr<SiteInstanceImpl> CreateForURL(
       BrowserContext* browser_context,
       const GURL& url);
+  static scoped_refptr<SiteInstanceImpl> FindOrCreateForURL(
+      BrowserContext* browser_context,
+      const GURL& url);
 
   // SiteInstance interface overrides.
   int32_t GetId() override;
   bool HasProcess() const override;
   RenderProcessHost* GetProcess() override;
   BrowserContext* GetBrowserContext() const override;
   const GURL& GetSiteURL() const override;
   scoped_refptr<SiteInstance> GetRelatedSiteInstance(const GURL& url) override;
   bool IsRelatedSiteInstance(const SiteInstance* instance) override;
   size_t GetRelatedActiveContentsCount() override;
   bool RequiresDedicatedProcess() override;
   bool IsDefaultSubframeSiteInstance() const override;
 
   // Returns the SiteInstance, related to this one, that should be used
   // for subframes when an oopif is required, but a dedicated process is not.
   // This SiteInstance will be created if it doesn't already exist. There is
   // at most one of these per BrowsingInstance.
   scoped_refptr<SiteInstanceImpl> GetDefaultSubframeSiteInstance();
 
   // Set the web site that this SiteInstance is rendering pages for.
   // This includes the scheme and registered domain, but not the port.  If the
   // URL does not have a valid registered domain, then the full hostname is
   // stored.
   void SetSite(const GURL& url);
   bool HasSite() const;
 
+  void UsedFor(const GURL& url);
+
   // Returns whether there is currently a related SiteInstance (registered with
   // BrowsingInstance) for the site of the given url.  If so, we should try to
   // avoid dedicating an unused SiteInstance to it (e.g., in a new tab).
   bool HasRelatedSiteInstance(const GURL& url);
 
   // Returns whether this SiteInstance has a process that is the wrong type for
   // the given URL.  If so, the browser should force a process swap when
   // navigating to the URL.
   bool HasWrongProcessForURL(const GURL& url);
 
@@ skipping 101 matching lines @@
   GURL site_;
 
   // Whether SetSite has been called.
   bool has_site_;
 
   // Whether this SiteInstance is the default subframe SiteInstance for its
   // BrowsingInstance. Only one SiteInstance per BrowsingInstance can have this
   // be true.
   bool is_default_subframe_site_instance_;
 
+  std::set<std::string> sites_displayed_;
+
   base::ObserverList<Observer, true> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(SiteInstanceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SITE_INSTANCE_IMPL_H_