[gin] Turn gin into a component

gin/object_template_builder.h

Index: gin/object_template_builder.h
diff --git a/gin/object_template_builder.h b/gin/object_template_builder.h
index 3103678d4b7c069e0d31356914a6b08c26a980e3..6367b71245c81dbb70b12c926811d3a63e6d0ed8 100644
--- a/gin/object_template_builder.h
+++ b/gin/object_template_builder.h
@@ -11,6 +11,7 @@
 #include "base/template_util.h"
 #include "gin/converter.h"
 #include "gin/function_template.h"
+#include "gin/gin_export.h"
 #include "v8/include/v8.h"
 
 namespace gin {
@@ -54,7 +55,7 @@ struct CallbackTraits<T, typename base::enable_if<
 // This specialization allows people to construct function templates directly if
 // they need to do fancier stuff.
 template<>
-struct CallbackTraits<v8::Handle<v8::FunctionTemplate> > {
+struct GIN_EXPORT CallbackTraits<v8::Handle<v8::FunctionTemplate> > {
   static v8::Handle<v8::FunctionTemplate> CreateTemplate(
       v8::Handle<v8::FunctionTemplate> templ) {
     return templ;
@@ -66,7 +67,7 @@ struct CallbackTraits<v8::Handle<v8::FunctionTemplate> > {
 
 // ObjectTemplateBuilder provides a handy interface to creating
 // v8::ObjectTemplate instances with various sorts of properties.
-class ObjectTemplateBuilder {
+class GIN_EXPORT ObjectTemplateBuilder {
  public:
   explicit ObjectTemplateBuilder(v8::Isolate* isolate);
   ~ObjectTemplateBuilder();