Translate: Move label parsing logic into common code.

chrome/browser/translate/translate_infobars_delegates.h

 // Copyright (c) 2010 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_INFOBARS_DELEGATES_H_
 #define CHROME_BROWSER_TRANSLATE_TRANSLATE_INFOBARS_DELEGATES_H_
 
 #include "chrome/browser/tab_contents/infobar_delegate.h"
 #include "chrome/browser/translate/translate_prefs.h"
 
@@ skipping 42 matching lines @@
   const std::string& GetLocaleFromIndex(int lang_index) const {
     return supported_languages_[lang_index];
   }
   TabContents* tab_contents() const {
     return tab_contents_;
   }
   TranslateState state() const {
     return state_;
   }
 
+  // Retrieve the text for the toolbar label.  The toolbar label is a bit
+  // strange since we need to place popup menus inside the string in question.
+  // To do this we use two placeholders.
+  //
+  // |message_text| is the text to display for the label.
+  // |offsets| contains the offsets of the number of placeholders in the text
+  // + message_text->length() i.e. it can contain 2 or 3 elements.
+  // offsets[0] < offsets[1] even in cases where the languages need to be
+  // displayed in reverse order.
+  // |swapped_language_placeholders| is true if we need to flip the order
+  // of the menus in the current locale.
+  void GetMessageText(string16 *message_text,
+                      std::vector<size_t> *offsets,
+                      bool *swapped_language_placeholders);
+
   // Overridden from InfoBarDelegate.
   virtual Type GetInfoBarType() {
     return PAGE_ACTION_TYPE;
   }
   virtual SkBitmap* GetIcon() const;
   virtual TranslateInfoBarDelegate* AsTranslateInfoBarDelegate() {
     return this;
   }
   virtual bool EqualsDelegate(InfoBarDelegate* delegate) const;
   virtual void InfoBarClosed();
@@ skipping 14 matching lines @@
   // The list of languages supported.
   std::vector<std::string> supported_languages_;
   bool never_translate_language_;
   bool never_translate_site_;
   bool always_translate_;
 
   DISALLOW_COPY_AND_ASSIGN(TranslateInfoBarDelegate);
 };
 
 #endif  // CHROME_BROWSER_TRANSLATE_TRANSLATE_INFOBARS_DELEGATES_H_