Add support for file inputs for all guest views

extensions/browser/guest_view/web_view/web_view_guest.cc

Index: extensions/browser/guest_view/web_view/web_view_guest.cc
diff --git a/extensions/browser/guest_view/web_view/web_view_guest.cc b/extensions/browser/guest_view/web_view/web_view_guest.cc
index 2276835350e56da06c1d875d94c6a403f991f06c..6a80c06ffac4eb47966af0c657b7000e0c5ff412 100644
--- a/extensions/browser/guest_view/web_view/web_view_guest.cc
+++ b/extensions/browser/guest_view/web_view/web_view_guest.cc
@@ -837,14 +837,6 @@ content::ColorChooser* WebViewGuest::OpenColorChooser(
       web_contents, color, suggestions);
 }
 
-void WebViewGuest::RunFileChooser(WebContents* web_contents,
-                                  const content::FileChooserParams& params) {
-  if (!attached() || !embedder_web_contents()->GetDelegate())
-    return;
-
-  embedder_web_contents()->GetDelegate()->RunFileChooser(web_contents, params);
-}
-
 void WebViewGuest::NavigateGuest(const std::string& src) {
   GURL url = ResolveURL(src);