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

chrome/browser/ui/android/context_menu_helper.h

Index: chrome/browser/ui/android/context_menu_helper.h
diff --git a/chrome/browser/ui/android/context_menu_helper.h b/chrome/browser/ui/android/context_menu_helper.h
index 04551147e1d9293bd1219470f0d670da18446e12..33bb16a39e587f35986e782b3e4ea0b90e86ca02 100644
--- a/chrome/browser/ui/android/context_menu_helper.h
+++ b/chrome/browser/ui/android/context_menu_helper.h
@@ -5,12 +5,12 @@
 #ifndef CHROME_BROWSER_UI_ANDROID_CONTEXT_MENU_HELPER_H_
 #define CHROME_BROWSER_UI_ANDROID_CONTEXT_MENU_HELPER_H_
 
+#include <memory>
 #include <string>
 
 #include "base/android/jni_android.h"
 #include "base/callback.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "content/public/browser/web_contents_user_data.h"
 #include "content/public/common/context_menu_params.h"
 #include "ui/gfx/geometry/size.h"