Re-write many calls to WrapUnique() with MakeUnique()

chrome/browser/extensions/navigation_observer.cc

Index: chrome/browser/extensions/navigation_observer.cc
diff --git a/chrome/browser/extensions/navigation_observer.cc b/chrome/browser/extensions/navigation_observer.cc
index af3b45ef2210ba88ccb54cf06b68220efd1fc2b5..6aa0930a3864d05ddb4845c2ac10899b33ac1920 100644
--- a/chrome/browser/extensions/navigation_observer.cc
+++ b/chrome/browser/extensions/navigation_observer.cc
@@ -87,7 +87,7 @@ void NavigationObserver::PromptToEnableExtensionIfNecessary(
         base::Bind(&NavigationObserver::OnInstallPromptDone,
                    weak_factory_.GetWeakPtr()),
         extension, nullptr,
-        base::WrapUnique(new ExtensionInstallPrompt::Prompt(type)),
+        base::MakeUnique<ExtensionInstallPrompt::Prompt>(type),
         ExtensionInstallPrompt::GetDefaultShowDialogCallback());
   }
 }