Begin to enable extension APIs in Extension Service Worker.

extensions/renderer/console.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/console.h"
 
 #include "base/compiler_specific.h"
 #include "base/debug/alias.h"
 #include "base/lazy_instance.h"
 #include "base/macros.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
+#include "content/public/child/worker_thread.h"
 #include "content/public/renderer/render_frame.h"
 #include "extensions/renderer/extension_frame_helper.h"
 #include "extensions/renderer/script_context.h"
 #include "extensions/renderer/script_context_set.h"
 #include "extensions/renderer/v8_helpers.h"
 
 namespace extensions {
 namespace console {
 
 using namespace v8_helpers;
@@ skipping 19 matching lines @@
       message += " ";
     message += *v8::String::Utf8Value(info[i]);
   }
 
   v8::Local<v8::Context> context = info.GetIsolate()->GetCurrentContext();
   if (context.IsEmpty()) {
     LOG(WARNING) << "Could not log \"" << message << "\": no context given";
     return;
   }
 
+  // A worker's ScriptContext neither lives in ScriptContextSet nor it has a
+  // RenderFrame associated with it, so early exit in this case.
+  // TODO(lazyboy): Fix.
+  if (content::WorkerThread::GetCurrentId() > 0)
+    return;
+
   ScriptContext* script_context =
       ScriptContextSet::GetContextByV8Context(context);
   LogMethod log_method =
       reinterpret_cast<LogMethod>(info.Data().As<v8::External>()->Value());
   (*log_method)(script_context ? script_context->GetRenderFrame() : nullptr,
                 message);
 }
 
 void BindLogMethod(v8::Isolate* isolate,
                    v8::Local<v8::Object> target,
@@ skipping 55 matching lines @@
   v8::Local<v8::Object> console_object = v8::Object::New(isolate);
   BindLogMethod(isolate, console_object, "debug", &Debug);
   BindLogMethod(isolate, console_object, "log", &Log);
   BindLogMethod(isolate, console_object, "warn", &Warn);
   BindLogMethod(isolate, console_object, "error", &Error);
   return handle_scope.Escape(console_object);
 }
 
 }  // namespace console
 }  // namespace extensions