Refactor GuestView.

chrome/browser/guestview/guestview.cc

Index: chrome/browser/guestview/guestview.cc
diff --git a/chrome/browser/guestview/guestview.cc b/chrome/browser/guestview/guestview.cc
index cb6444d6409d279b0cc85f43a34457ce11e6c61e..d3e9f928e45082e5b12b385ff06dae4a418a1185 100644
--- a/chrome/browser/guestview/guestview.cc
+++ b/chrome/browser/guestview/guestview.cc
@@ -168,14 +168,6 @@ GuestView::Type GuestView::GetViewType() const {
   return GuestView::UNKNOWN;
 }
 
-WebViewGuest* GuestView::AsWebView() {
-  return NULL;
-}
-
-AdViewGuest* GuestView::AsAdView() {
-  return NULL;
-}
-
 GuestView::~GuestView() {
   std::pair<int, int> key(embedder_render_process_id_, guest_instance_id_);
   embedder_guestview_map.Get().erase(key);
@@ -189,8 +181,10 @@ GuestView::~GuestView() {
 }
 
 void GuestView::DispatchEvent(Event* event) {
-  if (!in_extension())
-      return;
+  if (!in_extension()) {
+    delete event;
+    return;
+  }
 
   if (!attached()) {
     pending_events_.push(event);