Add a dependency from Gin to base

gin/modules/module_registry.cc

Index: gin/modules/module_registry.cc
diff --git a/gin/modules/module_registry.cc b/gin/modules/module_registry.cc
index 78a102c0a6da5186e83987ecef41716181d4c8f0..aad2135b0e1114aa634366d7da39e91831946bfe 100644
--- a/gin/modules/module_registry.cc
+++ b/gin/modules/module_registry.cc
@@ -4,9 +4,9 @@
 
 #include "gin/modules/module_registry.h"
 
-#include <assert.h>
 #include <string>
 #include <vector>
+#include "base/logging.h"
 #include "gin/arguments.h"
 #include "gin/converter.h"
 #include "gin/per_isolate_data.h"
@@ -104,7 +104,7 @@ void ModuleRegistry::RegisterGlobals(v8::Isolate* isolate,
 void ModuleRegistry::AddBuiltinModule(Isolate* isolate,
                                       const std::string& id,
                                       Handle<ObjectTemplate> templ) {
-  assert(!id.empty());
+  DCHECK(!id.empty());
   Handle<v8::Object> modules = v8::Local<v8::Object>::New(isolate, modules_);
   modules->Set(StringToV8(isolate, id), templ->NewInstance());
 }
@@ -120,7 +120,7 @@ ModuleRegistry* ModuleRegistry::From(Handle<v8::Context> context) {
       return NULL;
     ModuleRegistry* registry = new ModuleRegistry(isolate);
     context->Global()->SetHiddenValue(key, v8::External::New(registry));
-    data->AddSupplement(registry);
+    data->AddSupplement(scoped_ptr<ContextSupplement>(registry));
     return registry;
   }
   return static_cast<ModuleRegistry*>(external->Value());