Update SupportsUserData uses with unique_ptr.

gin/modules/module_registry.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gin/modules/module_registry.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/logging.h"
+#include "base/memory/ptr_util.h"
 #include "gin/arguments.h"
 #include "gin/converter.h"
 #include "gin/modules/module_registry_observer.h"
 #include "gin/per_context_data.h"
 #include "gin/per_isolate_data.h"
 #include "gin/public/wrapper_info.h"
 #include "gin/runner.h"
 
 using v8::Context;
 using v8::External;
@@ skipping 108 matching lines @@
   PerContextData* data = PerContextData::From(context);
   if (!data)
     return NULL;
 
   ModuleRegistryData* registry_data = static_cast<ModuleRegistryData*>(
       data->GetUserData(kModuleRegistryKey));
   if (!registry_data) {
     // PerContextData takes ownership of ModuleRegistryData.
     registry_data = new ModuleRegistryData;
     registry_data->registry.reset(new ModuleRegistry(context->GetIsolate()));
-    data->SetUserData(kModuleRegistryKey, registry_data);
+    data->SetUserData(kModuleRegistryKey, base::WrapUnique(registry_data));
   }
   return registry_data->registry.get();
 }
 
 void ModuleRegistry::AddObserver(ModuleRegistryObserver* observer) {
   observer_list_.AddObserver(observer);
 }
 
 void ModuleRegistry::RemoveObserver(ModuleRegistryObserver* observer) {
   observer_list_.RemoveObserver(observer);
@@ skipping 127 matching lines @@
     for (size_t i = 0; i < pending_modules.size(); ++i) {
       std::unique_ptr<PendingModule> pending(pending_modules[i]);
       pending_modules[i] = NULL;
       if (AttemptToLoad(isolate, std::move(pending)))
         keep_trying = true;
     }
   }
 }
 
 }  // namespace gin