Implement a module system for the extension bindings JS.

chrome/renderer/source_map.h

Index: chrome/renderer/source_map.h
diff --git a/chrome/renderer/source_map.h b/chrome/renderer/source_map.h
new file mode 100644
index 0000000000000000000000000000000000000000..9d470cec2ac4bb6c38040d4cc51a29b451235287
--- /dev/null
+++ b/chrome/renderer/source_map.h
@@ -0,0 +1,19 @@
+// Copyright (c) 2012 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 CHROME_RENDERER_SOURCE_MAP_H_
+#define CHROME_RENDERER_SOURCE_MAP_H_
+#pragma once
+
+#include "v8/include/v8.h"
+
+#include <string>
+
+class SourceMap {

[Aaron Boodman, 2012/03/01 07:24:26]

This interface is really just a detail of ModuleSystem. Nest it there?
Otherwise, it needs to be included in chrome_renderer.gypi.

[koz (OOO until 15th September), 2012/03/02 01:13:58]

Done.

+ public:
+  virtual v8::Handle<v8::Value> GetSource(const std::string& name) = 0;
+  virtual bool Contains(const std::string& name) = 0;
+};
+
+#endif  // CHROME_RENDERER_SOURCE_MAP_H_