Towards moving guest management to chrome: Introduce GuestViewManager

chrome/browser/guestview/guestview.h

Index: chrome/browser/guestview/guestview.h
diff --git a/chrome/browser/guestview/guestview.h b/chrome/browser/guestview/guestview.h
index 70dda8fa9997b407b37280f0cf1724c99cbac214..a8c2d5fcb11a9b8bec7bca3bac9fc4eaa8ed5cf6 100644
--- a/chrome/browser/guestview/guestview.h
+++ b/chrome/browser/guestview/guestview.h
@@ -46,7 +46,8 @@ class GuestView : public content::BrowserPluginGuestDelegate {
 
   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);
 
@@ -82,6 +83,8 @@ class GuestView : public content::BrowserPluginGuestDelegate {
 
   virtual Type GetViewType() const;
 
+  base::WeakPtr<GuestView> AsWeakPtr();
+
   // Returns a WebViewGuest if this GuestView belongs to a <webview>.
   virtual WebViewGuest* AsWebView() = 0;
 
@@ -113,9 +116,14 @@ class GuestView : public content::BrowserPluginGuestDelegate {
   // 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.
@@ -140,6 +148,9 @@ class GuestView : public content::BrowserPluginGuestDelegate {
   // the guest is attached to a particular embedder.
   std::deque<linked_ptr<Event> > pending_events_;
 
+  // Returns a WeakPtr to this GuestView.
+  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_;