Remove ScopedVector from ios/.

ios/chrome/browser/ui/webui/popular_sites_internals_ui.cc

Index: ios/chrome/browser/ui/webui/popular_sites_internals_ui.cc
diff --git a/ios/chrome/browser/ui/webui/popular_sites_internals_ui.cc b/ios/chrome/browser/ui/webui/popular_sites_internals_ui.cc
index c22c471567b4b28c593cad618dfb0c3b0e0a304b..e07a780365626132bcdd56f9fdd2c01c315b0b8a 100644
--- a/ios/chrome/browser/ui/webui/popular_sites_internals_ui.cc
+++ b/ios/chrome/browser/ui/webui/popular_sites_internals_ui.cc
@@ -4,6 +4,7 @@
 
 #include "ios/chrome/browser/ui/webui/popular_sites_internals_ui.h"
 
+#include "base/memory/ptr_util.h"
 #include "components/grit/components_resources.h"
 #include "components/ntp_tiles/popular_sites.h"
 #include "components/ntp_tiles/webui/popular_sites_internals_message_handler.h"
@@ -94,7 +95,8 @@ PopularSitesInternalsUI::PopularSitesInternalsUI(web::WebUIIOS* web_ui)
     : web::WebUIIOSController(web_ui) {
   web::WebUIIOSDataSource::Add(ios::ChromeBrowserState::FromWebUIIOS(web_ui),
                                CreatePopularSitesInternalsHTMLSource());
-  web_ui->AddMessageHandler(new IOSPopularSitesInternalsMessageHandlerBridge);
+  web_ui->AddMessageHandler(
+      base::MakeUnique<IOSPopularSitesInternalsMessageHandlerBridge>());
 }
 
 PopularSitesInternalsUI::~PopularSitesInternalsUI() {}