Move language detection to a component

chrome/browser/translate/translate_infobar_delegate.h

 // Copyright (c) 2011 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_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_TRANSLATE_TRANSLATE_INFOBAR_DELEGATE_H_
 
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "chrome/browser/infobars/infobar_delegate.h"
 #include "chrome/browser/translate/translate_prefs.h"
-#include "chrome/common/chrome_constants.h"
 #include "chrome/common/translate/translate_errors.h"
+#include "components/translate/common/translate_constants.h"
 
 class PrefService;
 
 // The defaults after which extra shortcuts for options
 // can be shown.
 struct ShortcutConfiguration {
   int always_translate_min_count;
   int never_translate_min_count;
 };
 
@@ skipping 68 matching lines @@
   }
   size_t target_language_index() const { return target_language_index_; }
   void set_target_language_index(size_t language_index) {
     DCHECK_LT(language_index, num_languages());
     target_language_index_ = language_index;
   }
 
   // Convenience methods.
   std::string original_language_code() const {
     return (original_language_index() == kNoIndex) ?
-        chrome::kUnknownLanguageCode :
+        translate::kUnknownLanguageCode :
         language_code_at(original_language_index());
   }
   std::string target_language_code() const {
     return language_code_at(target_language_index());
   }
 
   // Returns true if the current infobar indicates an error (in which case it
   // should get a yellow background instead of a blue one).
   bool is_error() const { return infobar_type_ == TRANSLATION_ERROR; }
 
@@ skipping 116 matching lines @@
 
   // The translation related preferences.
   TranslatePrefs prefs_;
 
   // Translation shortcut configuration
   ShortcutConfiguration shortcut_config_;
   DISALLOW_COPY_AND_ASSIGN(TranslateInfoBarDelegate);
 };
 
 #endif  // CHROME_BROWSER_TRANSLATE_TRANSLATE_INFOBAR_DELEGATE_H_