Refactor guest view availability to be API not permission based.

chrome/browser/guest_view/guest_view_manager.cc

Index: chrome/browser/guest_view/guest_view_manager.cc
diff --git a/chrome/browser/guest_view/guest_view_manager.cc b/chrome/browser/guest_view/guest_view_manager.cc
index 0493bcfaea7939e16463fd5ba0dcaebf57b01466..892d7293942bd8dd3eaed03f13ec86ef8925d419 100644
--- a/chrome/browser/guest_view/guest_view_manager.cc
+++ b/chrome/browser/guest_view/guest_view_manager.cc
@@ -62,12 +62,11 @@ int GuestViewManager::GetNextInstanceID() {
   return ++current_instance_id_;
 }
 
-void GuestViewManager::CreateGuest(
-    const std::string& view_type,
-    const std::string& embedder_extension_id,
-    int embedder_render_process_id,
-    const base::DictionaryValue& create_params,
-    const WebContentsCreatedCallback& callback) {
+void GuestViewManager::CreateGuest(const std::string& view_type,
+                                   const std::string& embedder_extension_id,
+                                   content::WebContents* embedder_web_contents,
+                                   const base::DictionaryValue& create_params,
+                                   const WebContentsCreatedCallback& callback) {
   int guest_instance_id = GetNextInstanceID();
   GuestViewBase* guest =
       GuestViewBase::Create(context_, guest_instance_id, view_type);
@@ -75,10 +74,8 @@ void GuestViewManager::CreateGuest(
     callback.Run(NULL);
     return;
   }
-  guest->Init(embedder_extension_id,
-              embedder_render_process_id,
-              create_params,
-              callback);
+  guest->Init(
+      embedder_extension_id, embedder_web_contents, create_params, callback);
 }
 
 content::WebContents* GuestViewManager::CreateGuestWithWebContentsParams(