[Extensions Bindings] Add a bridge to use current custom bindings

extensions/renderer/api_binding.cc

 // 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.
 
 #include "extensions/renderer/api_binding.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 278 matching lines @@
     DCHECK(success.IsJust());
     DCHECK(success.FromJust());
   }
 
   if (binding_hooks_)
     binding_hooks_->InitializeInContext(context, api_name_);
 
   return object;
 }
 
+v8::Local<v8::Object> APIBinding::GetJSHooksInterface(

[jbroman, 2016/12/16 19:00:49]

nit: spelling changes from "Hook" to "Hooks"; why?

[Devlin, 2016/12/16 20:31:17]

Accident; synchronized.

+    v8::Local<v8::Context> context) {
+  return binding_hooks_->GetJSHookInterface(api_name_, context);
+}
+
 void APIBinding::HandleCall(const std::string& name,
                             const binding::APISignature* signature,
                             gin::Arguments* arguments) {
   std::string error;
   v8::Isolate* isolate = arguments->isolate();
   v8::HandleScope handle_scope(isolate);
 
   // Since this is called synchronously from the JS entry point,
   // GetCurrentContext() should always be correct.
   v8::Local<v8::Context> context = isolate->GetCurrentContext();
@@ skipping 20 matching lines @@
   if (!parsed_arguments) {
     arguments->ThrowTypeError("Invalid invocation");
     return;
   }
 
   method_callback_.Run(name, std::move(parsed_arguments), isolate,
                        context, callback);
 }
 
 }  // namespace extensions