Implement a module system for the extension bindings JS.

chrome/renderer/extensions/schema_generated_bindings.h

Index: chrome/renderer/extensions/schema_generated_bindings.h
diff --git a/chrome/renderer/extensions/schema_generated_bindings.h b/chrome/renderer/extensions/schema_generated_bindings.h
index 1785171e43915486f50cc5be532f73559e92edb1..f386dea65cc7ae7ee33b8ff1ffa40cc24beef0f7 100644
--- a/chrome/renderer/extensions/schema_generated_bindings.h
+++ b/chrome/renderer/extensions/schema_generated_bindings.h
@@ -8,12 +8,9 @@
 
 #include <string>
 
-class ExtensionDispatcher;
 class ChromeV8ContextSet;
-
-namespace v8 {
-class Extension;
-}
+class ChromeV8Extension;
+class ExtensionDispatcher;
 
 namespace extensions {
 
@@ -21,7 +18,7 @@ namespace extensions {
 // declarations in chrome/common/extensions/api/.
 class SchemaGeneratedBindings {
  public:
-  static v8::Extension* Get(ExtensionDispatcher* extension_dispatcher);
+  static ChromeV8Extension* Get(ExtensionDispatcher* extension_dispatcher);
 
   // Handles a response to an API request.  Sets |extension_id|.
   static void HandleResponse(const ChromeV8ContextSet& contexts,