Revert of 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 a72785d88f30497e26cd4ea48c0fae7ddad36f97..6489fc69485bd84d2dde4127fd04e66a7e56adf3 100644
--- a/extensions/browser/guest_view/web_view/web_view_guest.cc
+++ b/extensions/browser/guest_view/web_view/web_view_guest.cc
@@ -1039,6 +1039,12 @@ 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(),