Fix translate namespace

components/translate/content/browser/content_translate_driver.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_CONTENT_BROWSER_CONTENT_TRANSLATE_DRIVER_H_
 #define COMPONENTS_TRANSLATE_CONTENT_BROWSER_CONTENT_TRANSLATE_DRIVER_H_
 
 #include "base/basictypes.h"
 #include "components/translate/core/browser/translate_driver.h"
 
 namespace content {
 class NavigationController;
 class WebContents;
 }
 
+namespace translate {
+
 // Content implementation of TranslateDriver.
 class ContentTranslateDriver : public TranslateDriver {
  public:
 
   // The observer for the ContentTranslateDriver.
   class Observer {
    public:
     // Handles when the value of IsPageTranslated is changed.
     virtual void OnIsPageTranslatedChanged(content::WebContents* source) = 0;
 
@@ skipping 29 matching lines @@
 
  private:
   // The navigation controller of the tab we are associated with.
   content::NavigationController* navigation_controller_;
 
   Observer* observer_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentTranslateDriver);
 };
 
+}  // namespace translate
+
 #endif  // COMPONENTS_TRANSLATE_CONTENT_BROWSER_CONTENT_TRANSLATE_DRIVER_H_