Implement the file chooser as a new resource "host"

webkit/plugins/ppapi/ppb_file_ref_impl.h

Index: webkit/plugins/ppapi/ppb_file_ref_impl.h
diff --git a/webkit/plugins/ppapi/ppb_file_ref_impl.h b/webkit/plugins/ppapi/ppb_file_ref_impl.h
index 9b337584b9f49f65efeb85be954e9438f82e56cc..d7bb8c523ab9558125dde7c798bec9ef6faafdf1 100644
--- a/webkit/plugins/ppapi/ppb_file_ref_impl.h
+++ b/webkit/plugins/ppapi/ppb_file_ref_impl.h
@@ -12,6 +12,7 @@
 #include "ppapi/c/ppb_file_ref.h"
 #include "ppapi/shared_impl/ppb_file_ref_shared.h"
 #include "ppapi/shared_impl/var.h"
+#include "webkit/glue/webkit_glue_export.h"
 
 namespace webkit {
 namespace ppapi {
@@ -20,7 +21,8 @@ using ::ppapi::StringVar;
 
 class PPB_FileSystem_Impl;
 
-class PPB_FileRef_Impl : public ::ppapi::PPB_FileRef_Shared {
+class WEBKIT_GLUE_EXPORT PPB_FileRef_Impl
+    : public ::ppapi::PPB_FileRef_Shared {
  public:
   PPB_FileRef_Impl(const ::ppapi::PPB_FileRef_CreateInfo& info,
                    PPB_FileSystem_Impl* file_system);