Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/android/infobars/download_overwrite_infobar.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_UI_ANDROID_INFOBARS_DOWNLOAD_OVERWRITE_INFOBAR_H_
 #define CHROME_BROWSER_UI_ANDROID_INFOBARS_DOWNLOAD_OVERWRITE_INFOBAR_H_
 
 #include "base/android/scoped_java_ref.h"
 #include "base/macros.h"
 #include "chrome/browser/ui/android/infobars/infobar_android.h"
 
 namespace chrome {
 namespace android {
 class DownloadOverwriteInfoBarDelegate;
 }
 }
 
 // A native-side implementation of an infobar to ask whether to overwrite
 // an existing file with a new download.
 class DownloadOverwriteInfoBar : public InfoBarAndroid {
  public:
-  static scoped_ptr<infobars::InfoBar> CreateInfoBar(
-      scoped_ptr<chrome::android::DownloadOverwriteInfoBarDelegate> delegate);
+  static std::unique_ptr<infobars::InfoBar> CreateInfoBar(
+      std::unique_ptr<chrome::android::DownloadOverwriteInfoBarDelegate>
+          delegate);
   ~DownloadOverwriteInfoBar() override;
 
  private:
   explicit DownloadOverwriteInfoBar(
-      scoped_ptr<chrome::android::DownloadOverwriteInfoBarDelegate> delegate);
+      std::unique_ptr<chrome::android::DownloadOverwriteInfoBarDelegate>
+          delegate);
 
   // InfoBarAndroid:
   base::android::ScopedJavaLocalRef<jobject> CreateRenderInfoBar(
       JNIEnv* env) override;
   void ProcessButton(int action) override;
 
   chrome::android::DownloadOverwriteInfoBarDelegate* GetDelegate();
 
   DISALLOW_COPY_AND_ASSIGN(DownloadOverwriteInfoBar);
 };
 
 // Registers the native methods through JNI.
 bool RegisterDownloadOverwriteInfoBarDelegate(JNIEnv* env);
 
 #endif  // CHROME_BROWSER_UI_ANDROID_INFOBARS_DOWNLOAD_OVERWRITE_INFOBAR_H_