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

chrome/browser/ui/cocoa/javascript_app_modal_dialog_cocoa.h

Index: chrome/browser/ui/cocoa/javascript_app_modal_dialog_cocoa.h
diff --git a/chrome/browser/ui/cocoa/javascript_app_modal_dialog_cocoa.h b/chrome/browser/ui/cocoa/javascript_app_modal_dialog_cocoa.h
index d32c5404efc4a1ca974733f900ccbd56fff88b29..696d815b2911e55c6abc314f6d358e8ae81849a7 100644
--- a/chrome/browser/ui/cocoa/javascript_app_modal_dialog_cocoa.h
+++ b/chrome/browser/ui/cocoa/javascript_app_modal_dialog_cocoa.h
@@ -5,10 +5,11 @@
 #ifndef CHROME_BROWSER_UI_COCOA_JAVASCRIPT_APP_MODAL_DIALOG_COCOA_H_
 #define CHROME_BROWSER_UI_COCOA_JAVASCRIPT_APP_MODAL_DIALOG_COCOA_H_
 
+#include <memory>
+
 #include "base/logging.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "components/app_modal/native_app_modal_dialog.h"
 
 class AppModalDialogHelper;
@@ -44,8 +45,8 @@ class JavaScriptAppModalDialogCocoa : public app_modal::NativeAppModalDialog {
   // Returns the NSAlert associated with the modal dialog.
   NSAlert* GetAlert() const;
 
-  scoped_ptr<app_modal::JavaScriptAppModalDialog> dialog_;
-  scoped_ptr<AppModalDialogHelper> popup_helper_;
+  std::unique_ptr<app_modal::JavaScriptAppModalDialog> dialog_;
+  std::unique_ptr<AppModalDialogHelper> popup_helper_;
 
   // Created in the constructor and destroyed in the destructor.
   base::scoped_nsobject<JavaScriptAppModalDialogHelper> helper_;