[Extensions] Determine NativeMessaging ID solely on the browser process

extensions/renderer/runtime_custom_bindings.cc

 // Copyright 2014 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/runtime_custom_bindings.h"
 
 #include <stdint.h>
 
 #include <memory>
 
@@ skipping 69 matching lines @@
   CHECK(args[0]->IsString());
 
   // Verify that the extension has permission to use native messaging.
   if (!context()->GetAvailability("runtime.connectNative").is_available())
     return;
 
   content::RenderFrame* render_frame = context()->GetRenderFrame();
   if (!render_frame)
     return;
 
-  const std::string& extension_id = context()->GetExtensionID();
-  // Should be caught by JS.
-  CHECK(!extension_id.empty());
-
   std::string native_app_name = *v8::String::Utf8Value(args[0]);
 
   int port_id = -1;
   render_frame->Send(new ExtensionHostMsg_OpenChannelToNativeApp(
-      render_frame->GetRoutingID(), extension_id, native_app_name, &port_id));
+      render_frame->GetRoutingID(), native_app_name, &port_id));
   args.GetReturnValue().Set(static_cast<int32_t>(port_id));
 }
 
 void RuntimeCustomBindings::GetManifest(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   CHECK(context()->extension());
 
   std::unique_ptr<content::V8ValueConverter> converter(
       content::V8ValueConverter::create());
   args.GetReturnValue().Set(converter->ToV8Value(
@@ skipping 62 matching lines @@
       v8::Maybe<bool> maybe =
           v8_views->CreateDataProperty(v8_context, v8_index++, window);
       CHECK(maybe.IsJust() && maybe.FromJust());
     }
   }
 
   args.GetReturnValue().Set(v8_views);
 }
 
 }  // namespace extensions