Enable find-in-page across GuestViews.

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 77ac6851c20c257638a576b06ffa94628edaa0e4..3478f1c0f7f6faffbbab7711d6b666fd7e7f2b40 100644
--- a/extensions/browser/guest_view/web_view/web_view_guest.cc
+++ b/extensions/browser/guest_view/web_view/web_view_guest.cc
@@ -1039,12 +1039,6 @@ void WebViewGuest::SignalWhenReady(const base::Closure& callback) {
   manager->SignalOnScriptsLoaded(callback);
 }
 
-bool WebViewGuest::ShouldHandleFindRequestsForEmbedder() const {
-  if (web_view_guest_delegate_)
-    return web_view_guest_delegate_->ShouldHandleFindRequestsForEmbedder();
-  return false;
-}
-
 void WebViewGuest::WillAttachToEmbedder() {
   rules_registry_id_ = GetOrGenerateRulesRegistryID(
       owner_web_contents()->GetRenderProcessHost()->GetID(),