Move TranslateManager unit tests out of the browser_tests target.

components/translate/core/browser/translate_download_manager.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_DOWNLOAD_MANAGER_H_
 #define COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_DOWNLOAD_MANAGER_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 60 matching lines @@
   // Returns true if |language| is supported by the translation server as an
   // alpha language.
   static bool IsAlphaLanguage(const std::string& language);
 
   // Must be called to shut Translate down. Cancels any pending fetches.
   void Shutdown();
 
   // Clears the translate script, so it will be fetched next time we translate.
   void ClearTranslateScriptForTesting();
 
+  // Resets to its initial state as if newly created.
+  void ResetForTesting();
+
   // Used by unit-tests to override some defaults:
   // Delay after which the translate script is fetched again from the
   // translation server.
   void SetTranslateScriptExpirationDelay(int delay_ms);
 
  private:
   friend struct DefaultSingletonTraits<TranslateDownloadManager>;
   TranslateDownloadManager();
   virtual ~TranslateDownloadManager();
 
   scoped_ptr<TranslateLanguageList> language_list_;
 
   // An instance of TranslateScript which manages JavaScript source for
   // Translate.
   scoped_ptr<TranslateScript> script_;
 
   std::string application_locale_;
   scoped_refptr<net::URLRequestContextGetter> request_context_;
 };
 
 #endif  // COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_DOWNLOAD_MANAGER_H_