Translate: Hide the bubble if the user denies translating 2 times within 24 hours

components/translate/core/browser/translate_prefs.h

 // 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.
 
 #ifndef COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_PREFS_H_
 #define COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_PREFS_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 17 matching lines @@
 //
 // It is assumed that |prefs_| is alive while this instance is alive.
 class TranslatePrefs {
  public:
   static const char kPrefTranslateLanguageBlacklist[];
   static const char kPrefTranslateSiteBlacklist[];
   static const char kPrefTranslateWhitelists[];
   static const char kPrefTranslateDeniedCount[];
   static const char kPrefTranslateAcceptedCount[];
   static const char kPrefTranslateBlockedLanguages[];
+  static const char kPrefTranslateLastDeniedTime[];
+  static const char kPrefTranslateTooOftenDenied[];
 
   // |preferred_languages_pref| is only used on Chrome OS, other platforms must
   // pass NULL.
   TranslatePrefs(PrefService* user_prefs,
                  const char* accept_languages_pref,
                  const char* preferred_languages_pref);
 
   // Resets the blocked languages list, the sites blacklist, the languages
   // whitelist, and the accepted/denied counts.
   void ResetToDefaults();
@@ skipping 32 matching lines @@
   void IncrementTranslationDeniedCount(const std::string& language);
   void ResetTranslationDeniedCount(const std::string& language);
 
   // These methods are used to track how many times the user has accepted the
   // translation for a specific language. (So we can present a UI to white-list
   // that language if the user keeps accepting translations).
   int GetTranslationAcceptedCount(const std::string& language);
   void IncrementTranslationAcceptedCount(const std::string& language);
   void ResetTranslationAcceptedCount(const std::string& language);
 
+  // Update the last time on closing the Translate UI without translation.
+  void UpdateLastDeniedTime();
+
+  // Returns true if translation is denied too often.
+  bool IsTooOftenDenied() const;
+
   // Gets the language list of the language settings.
   void GetLanguageList(std::vector<std::string>* languages);
 
   // Updates the language list of the language settings.
   void UpdateLanguageList(const std::vector<std::string>& languages);
 
   bool CanTranslateLanguage(TranslateAcceptLanguages* accept_languages,
                             const std::string& language);
   bool ShouldAutoTranslate(const std::string& original_language,
                            std::string* target_language);
@@ skipping 45 matching lines @@
   // Retrieves the dictionary mapping the number of times translation has been
   // accepted for a language, creating it if necessary.
   base::DictionaryValue* GetTranslationAcceptedCountDictionary() const;
 
   PrefService* prefs_;  // Weak.
 
   DISALLOW_COPY_AND_ASSIGN(TranslatePrefs);
 };
 
 #endif  // COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_PREFS_H_