Added 'error logs' tab to chrome://translte-internals.

chrome/browser/translate/translate_manager.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_
 #define CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 10 matching lines @@
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "net/url_request/url_fetcher_delegate.h"
 
 template <typename T> struct DefaultSingletonTraits;
 class GURL;
 struct LanguageDetectionDetails;
 struct PageTranslatedDetails;
 class PrefService;
 struct ShortcutConfiguration;
+struct TranslateErrorDetails;
 class TranslateInfoBarDelegate;
 
 namespace content {
 class WebContents;
 }
 
 namespace net {
 class URLFetcher;
 }
 
@@ skipping 76 matching lines @@
 
   // static const values shared with our browser tests.
   static const char kLanguageListCallbackName[];
   static const char kTargetLanguagesKey[];
 
   // The observer class for TranslateManager.
   class Observer {
    public:
     virtual void OnLanguageDetection(
         const LanguageDetectionDetails& details) = 0;
+    virtual void OnTranslateError(
+        const TranslateErrorDetails& details) = 0;
   };
 
   // Adds/removes observer.
   void AddObserver(Observer* obs);
   void RemoveObserver(Observer* obs);
 
  protected:
   TranslateManager();
 
  private:
@@ skipping 47 matching lines @@
   // preference in |prefs|.
   void InitAcceptLanguages(PrefService* prefs);
 
   // Fetches the JS translate script (the script that is injected in the page
   // to translate it).
   void RequestTranslateScript();
 
   // Notifies to the observers when a language is detected.
   void NotifyLanguageDetection(const LanguageDetectionDetails& details);
 
+  // Notifies to the observers when translate failed.
+  void NotifyTranslateError(const TranslateErrorDetails& details);
+
   // Returns the language to translate to. The language returned is the
   // first language found in the following list that is supported by the
   // translation service:
   //     the UI language
   //     the accept-language list
   // If no language is found then an empty string is returned.
   static std::string GetTargetLanguage(PrefService* prefs);
 
   // Returns the different parameters used to decide whether extra shortcuts
   // are needed.
@@ skipping 38 matching lines @@
   // The languages supported by the translation server.
   static base::LazyInstance<std::set<std::string> > supported_languages_;
 
   // List of registered observers.
   ObserverList<Observer> observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(TranslateManager);
 };
 
 #endif  // CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_