Switch to standard integer types in chrome/browser/, part 4 of 4.

chrome/browser/task_management/providers/web_contents/background_contents_task.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_TASK_MANAGEMENT_PROVIDERS_WEB_CONTENTS_BACKGROUND_CONTENTS_TASK_H_
 #define CHROME_BROWSER_TASK_MANAGEMENT_PROVIDERS_WEB_CONTENTS_BACKGROUND_CONTENTS_TASK_H_
 
+#include "base/macros.h"
 #include "chrome/browser/background/background_contents.h"
 #include "chrome/browser/task_management/providers/web_contents/renderer_task.h"
 
 namespace task_management {
 
 // Defines a RendererTask that represents background |WebContents|.
 class BackgroundContentsTask : public RendererTask {
  public:
   BackgroundContentsTask(const base::string16& title,
                          BackgroundContents* background_contents);
   ~BackgroundContentsTask() override;
 
   // task_management::RendererTask:
   void UpdateTitle() override;
   void UpdateFavicon() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BackgroundContentsTask);
 };
 
 }  // namespace task_management
 
 #endif  // CHROME_BROWSER_TASK_MANAGEMENT_PROVIDERS_WEB_CONTENTS_BACKGROUND_CONTENTS_TASK_H_