Fix a bunch of IWYU violators that don't include scoped_ptr.h

chrome/browser/signin/easy_unlock_app_manager.h

 // Copyright 2015 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_SIGNIN_EASY_UNLOCK_APP_MANAGER_H_
 #define CHROME_BROWSER_SIGNIN_EASY_UNLOCK_APP_MANAGER_H_
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
 
 namespace extensions {
 class ExtensionSystem;
 }
 
 // Used to manage Easy Unlock app's lifetime and to dispatch events to the app.
 // It's main purpose is to abstract extension system from the rest of easy
 // unlock code.
 class EasyUnlockAppManager {
  public:
@@ skipping 25 matching lines @@
   // Sends easyUnlockPrivate.onUserInfoUpdate event to Easy Unlock app.
   virtual bool SendUserUpdatedEvent(const std::string& user_id,
                                     bool is_logged_in,
                                     bool data_ready) = 0;
 
   // Sends screenlockPrivate.onAuthAttempted event to Easy Unlock app.
   virtual bool SendAuthAttemptEvent() = 0;
 };
 
 #endif  // CHROME_BROWSER_SIGNIN_EASY_UNLOCK_APP_MANAGER_H_