Mojo JS bindings: draining a DataPipe

mojo/bindings/js/core.cc

Index: mojo/bindings/js/core.cc
diff --git a/mojo/bindings/js/core.cc b/mojo/bindings/js/core.cc
index ccabe87787d27544e0d8d149a8b211585dcb87fd..fbfb90ffca62a92352396a15111b01d360493cde 100644
--- a/mojo/bindings/js/core.cc
+++ b/mojo/bindings/js/core.cc
@@ -16,6 +16,7 @@
 #include "gin/per_isolate_data.h"
 #include "gin/public/wrapper_info.h"
 #include "gin/wrappable.h"
+#include "mojo/bindings/js/drain_data.h"
 #include "mojo/bindings/js/handle.h"
 
 namespace mojo {
@@ -221,6 +222,10 @@ gin::Dictionary ReadData(const gin::Arguments& args,
   return dictionary;
 }
 
+v8::Handle<v8::Value> DoDrainData(gin::Arguments* args, mojo::Handle handle) {
+  return (new DrainData(args->isolate(), handle))->GetPromise();
+}
+
 gin::WrapperInfo g_wrapper_info = { gin::kEmbedderNativeGin };
 
 }  // namespace
@@ -245,6 +250,7 @@ v8::Local<v8::Value> Core::GetModule(v8::Isolate* isolate) {
         .SetMethod("createDataPipe", CreateDataPipe)
         .SetMethod("writeData", WriteData)
         .SetMethod("readData", ReadData)
+        .SetMethod("drainData", DoDrainData)
 
         .SetValue("RESULT_OK", MOJO_RESULT_OK)
         .SetValue("RESULT_CANCELLED", MOJO_RESULT_CANCELLED)