Towards moving guest management to chrome: Introduce GuestViewManager

chrome/browser/guestview/guestview.h

 // Copyright 2014 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 CHROME_BROWSER_GUESTVIEW_GUESTVIEW_H_
 #define CHROME_BROWSER_GUESTVIEW_GUESTVIEW_H_
 
 #include <queue>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 28 matching lines @@
 
    private:
     const std::string name_;
     scoped_ptr<base::DictionaryValue> args_;
   };
 
   static Type GetViewTypeFromString(const std::string& api_type);
 
   static GuestView* Create(content::WebContents* guest_web_contents,
                            const std::string& embedder_extension_id,
-                           Type view_type);
+                           Type view_type,
+                           const base::WeakPtr<GuestView>& opener);
 
   static GuestView* FromWebContents(content::WebContents* web_contents);
 
   static GuestView* From(int embedder_process_id, int instance_id);
 
   // For GuestViews, we create special guest processes, which host the
   // tag content separately from the main application that embeds the tag.
   // A GuestView can specify both the partition name and whether the storage
   // for that partition should be persisted. Each tag gets a SiteInstance with
   // a specially formatted URL, based on the application it is hosted by and
@@ skipping 15 matching lines @@
     return embedder_web_contents_;
   }
 
   // Returns the guest WebContents.
   content::WebContents* guest_web_contents() const {
     return guest_web_contents_;
   }
 
   virtual Type GetViewType() const;
 
+  base::WeakPtr<GuestView> AsWeakPtr();
+
   // Returns a WebViewGuest if this GuestView belongs to a <webview>.
   virtual WebViewGuest* AsWebView() = 0;
 
   // Returns an AdViewGuest if the GuestView belongs to an <adview>.
   virtual AdViewGuest* AsAdView() = 0;
 
   // Returns whether this guest has an associated embedder.
   bool attached() const { return !!embedder_web_contents_; }
 
   // Returns the instance ID of the <*view> element.
@@ skipping 11 matching lines @@
   bool in_extension() const {
     return !embedder_extension_id_.empty();
   }
 
   // Returns the user browser context of the embedder.
   content::BrowserContext* browser_context() const { return browser_context_; }
 
   // Returns the embedder's process ID.
   int embedder_render_process_id() const { return embedder_render_process_id_; }
 
+  // BrowserPluginGuestDelegate implementation.
+  virtual content::WebContents* GetOpener() const OVERRIDE;
+  virtual void SetOpener(content::WebContents* opener) OVERRIDE;
+
  protected:
   GuestView(content::WebContents* guest_web_contents,
-            const std::string& embedder_extension_id);
+            const std::string& embedder_extension_id,
+            const base::WeakPtr<GuestView>& opener);
   virtual ~GuestView();
 
   // Dispatches an event |event_name| to the embedder with the |event| fields.
   void DispatchEvent(Event* event);
 
  private:
   void SendQueuedEvents();
 
   content::WebContents* const guest_web_contents_;
   content::WebContents* embedder_web_contents_;
   const std::string embedder_extension_id_;
   int embedder_render_process_id_;
   content::BrowserContext* const browser_context_;
   // |guest_instance_id_| is a profile-wide unique identifier for a guest
   // WebContents.
   const int guest_instance_id_;
   // |view_instance_id_| is an identifier that's unique within a particular
   // embedder RenderViewHost for a particular <*view> instance.
   int view_instance_id_;
 
   // This is a queue of Events that are destined to be sent to the embedder once
   // the guest is attached to a particular embedder.
   std::deque<linked_ptr<Event> > pending_events_;
 
+  // Returns a WeakPtr to this GuestView.

[lazyboy, 2014/04/30 08:40:15]

This is the opener web_content's guest? not the the weak pointer of this
guestview.
nit: This is not a function, so shouldn't start with "Returns .."

+  base::WeakPtr<GuestView> opener_;
+
   // This is used to ensure pending tasks will not fire after this object is
   // destroyed.
   base::WeakPtrFactory<GuestView> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GuestView);
 };
 
 #endif  // CHROME_BROWSER_GUESTVIEW_GUESTVIEW_H_