move node-mbgl to platform/node/ directory

platform/node/src/node_log.hpp

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <mbgl/platform/log.hpp>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#pragma GCC diagnostic ignored "-Wshadow"
+#include <node.h>
+#include <nan.h>
+#pragma GCC diagnostic pop
+
+namespace node_mbgl {
+
+namespace util { template <typename T> class AsyncQueue; }
+
+class NodeLogObserver : public mbgl::Log::Observer {
+public:
+    NodeLogObserver(v8::Handle<v8::Object> target);
+    ~NodeLogObserver();
+
+    // Log::Observer implementation
+    virtual bool onRecord(mbgl::EventSeverity severity, mbgl::Event event, int64_t code, const std::string &msg) override;
+
+private:
+    v8::Persistent<v8::Object> module;
+
+    struct LogMessage;
+    using Queue = util::AsyncQueue<LogMessage>;
+    Queue *queue = nullptr;
+};
+
+}