Towards moving guest management to chrome: Introduce GuestViewManager

chrome/browser/guest_view/web_view/web_view_guest.h

Index: chrome/browser/guest_view/web_view/web_view_guest.h
diff --git a/chrome/browser/guest_view/web_view/web_view_guest.h b/chrome/browser/guest_view/web_view/web_view_guest.h
index d0a50b72ac98bab27b3cfea39b90e20362f5a22f..e5102c56f6c99cfefb267327d37fce0418c898cb 100644
--- a/chrome/browser/guest_view/web_view/web_view_guest.h
+++ b/chrome/browser/guest_view/web_view/web_view_guest.h
@@ -36,7 +36,8 @@ class WebViewGuest : public GuestView<WebViewGuest>,
                      public content::WebContentsObserver {
  public:
   WebViewGuest(content::WebContents* guest_web_contents,
-               const std::string& embedder_extension_id);
+               const std::string& embedder_extension_id,
+               const base::WeakPtr<GuestViewBase>& opener);
 
   // Returns guestview::kInstanceIDNone if |contents| does not correspond to a
   // WebViewGuest.