Added |load_completion_status| to WebStateObserver's |PageLoaded|.

components/translate/ios/browser/language_detection_controller.mm

 // 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 "components/translate/ios/browser/language_detection_controller.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 109 matching lines @@
 
   DetectionDetails details;
   details.content_language = http_content_language;
   details.html_root_language = html_lang;
   details.adopted_language = language;
   language_detection_callbacks_.Notify(details);
 }
 
 // web::WebStateObserver implementation:
 
-void LanguageDetectionController::PageLoaded() {
-  StartLanguageDetection();
+void LanguageDetectionController::PageLoaded(
+    web::PageLoadCompletionStatus load_completion_status) {
+  if (load_completion_status == web::PageLoadCompletionStatus::SUCCESS)
+    StartLanguageDetection();
 }
 
 void LanguageDetectionController::URLHashChanged() {
   StartLanguageDetection();
 }
 
 void LanguageDetectionController::HistoryStateChanged() {
   StartLanguageDetection();
 }
 
 void LanguageDetectionController::WebStateDestroyed() {
   web_state()->RemoveScriptCommandCallback(kCommandPrefix);
 }
 
 }  // namespace translate