GuestView: Move Disable Drag and Drop Out to Chrome

chrome/browser/guest_view/web_view/web_view_guest.cc

Index: chrome/browser/guest_view/web_view/web_view_guest.cc
diff --git a/chrome/browser/guest_view/web_view/web_view_guest.cc b/chrome/browser/guest_view/web_view/web_view_guest.cc
index 0247aba33fed4f600f855d19f2a3acecacbb3609..013e789333bfedd10f6ff61d5590c00441e2b8b2 100644
--- a/chrome/browser/guest_view/web_view/web_view_guest.cc
+++ b/chrome/browser/guest_view/web_view/web_view_guest.cc
@@ -447,10 +447,6 @@ void WebViewGuest::HandleKeyboardEvent(
       web_contents(), event);
 }
 
-bool WebViewGuest::IsDragAndDropEnabled() {
-  return true;
-}
-
 void WebViewGuest::LoadProgressChanged(content::WebContents* source,
                                        double progress) {
   scoped_ptr<base::DictionaryValue> args(new base::DictionaryValue());