Enable find-in-page across GuestViews.

extensions/browser/guest_view/web_view/web_view_guest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 1021 matching lines @@
       user_gesture,
       last_unlocked_by_target,
       callback);
 }
 
 void WebViewGuest::SignalWhenReady(const base::Closure& callback) {
   auto* manager = WebViewContentScriptManager::Get(browser_context());
   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(),
       view_instance_id());
 
   // We must install the mapping from guests to WebViews prior to resuming
   // suspended resource loads so that the WebRequest API will catch resource
   // requests.
   PushWebViewStateToIOThread();
 }
@@ skipping 496 matching lines @@
     std::unique_ptr<base::DictionaryValue> args(new base::DictionaryValue());
     DispatchEventToView(base::MakeUnique<GuestViewEvent>(
         webview::kEventExitFullscreen, std::move(args)));
   }
   // Since we changed fullscreen state, sending a Resize message ensures that
   // renderer/ sees the change.
   web_contents()->GetRenderViewHost()->GetWidget()->WasResized();
 }
 
 }  // namespace extensions