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

chrome/browser/extensions/webstore_startup_installer.cc

Index: chrome/browser/extensions/webstore_startup_installer.cc
diff --git a/chrome/browser/extensions/webstore_startup_installer.cc b/chrome/browser/extensions/webstore_startup_installer.cc
index 5dee0f42c510ada94606f520f41d67e8812a5a0d..691f92421c3ca8da35bd85674ba2a1d11f47d857 100644
--- a/chrome/browser/extensions/webstore_startup_installer.cc
+++ b/chrome/browser/extensions/webstore_startup_installer.cc
@@ -24,8 +24,8 @@ WebstoreStartupInstaller::~WebstoreStartupInstaller() {}
 std::unique_ptr<ExtensionInstallPrompt::Prompt>
 WebstoreStartupInstaller::CreateInstallPrompt() const {
   if (show_prompt_) {
-    return base::WrapUnique(new ExtensionInstallPrompt::Prompt(
-        ExtensionInstallPrompt::INSTALL_PROMPT));
+    return base::MakeUnique<ExtensionInstallPrompt::Prompt>(
+        ExtensionInstallPrompt::INSTALL_PROMPT);
   }
   return NULL;
 }