Refactor the translate infobars on mac to match the new windows code.

chrome/browser/translate/translate_infobar_delegate2.h

Index: chrome/browser/translate/translate_infobar_delegate2.h
diff --git a/chrome/browser/translate/translate_infobar_delegate2.h b/chrome/browser/translate/translate_infobar_delegate2.h
index 2129776d28b9122433848e354e78a900cc9f32c3..bb535ad3b254936c10c159a855963776918d175e 100644
--- a/chrome/browser/translate/translate_infobar_delegate2.h
+++ b/chrome/browser/translate/translate_infobar_delegate2.h
@@ -2,8 +2,8 @@
 // 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_DELEGATE2_H
-#define CHROME_BROWSER_TRANSLATE_TRANSLATE_INFOBAR_DELEGATE2_H
+#ifndef CHROME_BROWSER_TRANSLATE_TRANSLATE_INFOBAR_DELEGATE2_H_
+#define CHROME_BROWSER_TRANSLATE_TRANSLATE_INFOBAR_DELEGATE2_H_
 
 #include <string>
 #include <vector>
@@ -129,21 +129,22 @@ class TranslateInfoBarDelegate2 : public InfoBarDelegate {
   static void GetAfterTranslateStrings(std::vector<string16>* strings,
                                        bool* swap_languages);
 
- private:
-  typedef std::pair<std::string, string16> LanguageNamePair;
-
-  // Gets the host of the page being translated, or an empty string if no URL is
-  // associated with the current page.
-  std::string GetPageHost();
-
+ protected:
+  // For testing.
   TranslateInfoBarDelegate2(Type infobar_type,
                             TranslateErrors::Type error,
                             TabContents* tab_contents,
                             const std::string& original_language,
                             const std::string& target_language);
-
   Type type_;
 
+ private:
+  typedef std::pair<std::string, string16> LanguageNamePair;
+
+  // Gets the host of the page being translated, or an empty string if no URL is
+  // associated with the current page.
+  std::string GetPageHost();
+
   // The type of fading animation if any that should be used when showing this
   // infobar.
   BackgroundAnimationType background_animation_;
@@ -174,5 +175,5 @@ class TranslateInfoBarDelegate2 : public InfoBarDelegate {
   DISALLOW_COPY_AND_ASSIGN(TranslateInfoBarDelegate2);
 };
 
-#endif  // CHROME_BROWSER_TRANSLATE_TRANSLATE_INFOBAR_DELEGATE2_H
+#endif  // CHROME_BROWSER_TRANSLATE_TRANSLATE_INFOBAR_DELEGATE2_H_