Adds Mojo IDL.

third_party/WebKit/public/web/WebMojoBindings.h

Index: third_party/WebKit/public/web/WebMojoBindings.h
diff --git a/third_party/WebKit/public/web/WebMojoBindings.h b/third_party/WebKit/public/web/WebMojoBindings.h
new file mode 100644
index 0000000000000000000000000000000000000000..e8084d3cfe99d2981d04db6dade70704b31999f8
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+++ b/third_party/WebKit/public/web/WebMojoBindings.h
@@ -0,0 +1,27 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WebMojoBindings_h
+#define WebMojoBindings_h
+
+#include "public/platform/InterfaceProvider.h"
+#include "public/platform/WebCommon.h"
+#include <v8.h>
+
+namespace blink {
+
+class WebMojoBindings {
+ public:
+  BLINK_EXPORT static v8::Local<v8::Value> createCore(v8::Isolate*,
+                                                      v8::Local<v8::Context>);
+
+  BLINK_EXPORT static v8::Local<v8::Value> createInterfaceProvider(

[esprehn, 2016/10/10 20:59:46]

Instead of providing a new API, I think you just want an API on blink that takes
an isolated world id and blink inserts the API for you.

[alokp, 2016/10/10 23:48:17]

Sorry for my ignorance, can you point me to an existing example that I can
follow?

[esprehn, 2016/10/10 23:54:46]

See for example WebTestingSupport::injectInternalsObject, you'll want something
like that which takes a WebLocalFrame and an isolated world id. haraken@ can
help you further.

[esprehn, 2016/10/11 00:12:38]

Err you can take a v8::Context directly instead too, and handle the isolated
world stuff out in content for now, which is what injectInternalsObject does.

[alokp, 2016/10/18 00:11:47]

Added a TODO to do this in a follow-up patch. Wrapping the core binding into a
gin module is the least disruptive way to transition.

+      v8::Isolate*,
+      v8::Local<v8::Context>,
+      std::unique_ptr<InterfaceProvider>);
+};
+
+}  // namespace blink
+
+#endif  // WebMojoBindings_h