[extension SW] Support lazy events from extension service workers.

extensions/renderer/script_context.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/script_context.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/strings/string_split.h"
@@ skipping 236 matching lines @@
 std::string ScriptContext::GetContextTypeDescription() const {
   DCHECK(thread_checker_.CalledOnValidThread());
   return GetContextTypeDescriptionString(context_type_);
 }
 
 std::string ScriptContext::GetEffectiveContextTypeDescription() const {
   DCHECK(thread_checker_.CalledOnValidThread());
   return GetContextTypeDescriptionString(effective_context_type_);
 }
 
+const GURL& ScriptContext::service_worker_scope() const {
+  DCHECK_EQ(Feature::SERVICE_WORKER_CONTEXT, context_type());
+  return service_worker_scope_;
+}
+
 bool ScriptContext::IsAnyFeatureAvailableToContext(
     const Feature& api,
     CheckAliasStatus check_alias) {
   DCHECK(thread_checker_.CalledOnValidThread());
   // TODO(lazyboy): Decide what we should do for SERVICE_WORKER_CONTEXT, where
   // web_frame() is null.
   GURL url = web_frame() ? GetDataSourceURLForFrame(web_frame()) : url_;
   return ExtensionAPI::GetSharedInstance()->IsAnyFeatureAvailableToContext(
       api, extension(), context_type(), url, check_alias);
 }
@@ skipping 258 matching lines @@
 
   v8::Local<v8::Object> global = v8_context()->Global();
   if (!web_frame_)
     return handle_scope.Escape(function->Call(global, argc, argv));
   return handle_scope.Escape(
       v8::Local<v8::Value>(web_frame_->CallFunctionEvenIfScriptDisabled(
           function, global, argc, argv)));
 }
 
 }  // namespace extensions