Introduces DevToolsManagerDelegate.

content/browser/service_worker/service_worker_context_wrapper.cc

Index: content/browser/service_worker/service_worker_context_wrapper.cc
diff --git a/content/browser/service_worker/service_worker_context_wrapper.cc b/content/browser/service_worker/service_worker_context_wrapper.cc
index e6a9004d8ab2397c8f4fcd28a96d16b1ba50ba12..03efcd16fdb9d4934b54d5d8b1e761e443f6f7ae 100644
--- a/content/browser/service_worker/service_worker_context_wrapper.cc
+++ b/content/browser/service_worker/service_worker_context_wrapper.cc
@@ -36,6 +36,7 @@ void ServiceWorkerContextWrapper::Init(
                    make_scoped_refptr(quota_manager_proxy)));
     return;
   }
+  observer_list_->AddObserver(this);
   DCHECK(!context_core_);
   context_core_.reset(new ServiceWorkerContextCore(
       user_data_directory,
@@ -53,6 +54,7 @@ void ServiceWorkerContextWrapper::Shutdown() {
         base::Bind(&ServiceWorkerContextWrapper::Shutdown, this));
     return;
   }
+  observer_list_->RemoveObserver(this);
   // Breaks the reference cycle through ServiceWorkerProcessManager.
   context_core_.reset();
 }
@@ -127,6 +129,18 @@ void ServiceWorkerContextWrapper::UnregisterServiceWorker(
       base::Bind(&FinishUnregistrationOnIO, continuation));
 }
 
+void ServiceWorkerContextWrapper::AddStatusChangeObserver(
+    StatusChangeObserver* observer) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  status_change_observers_.AddObserver(observer);
+}
+
+void ServiceWorkerContextWrapper::RemoveStatusChangeObserver(
+    StatusChangeObserver* observer) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  status_change_observers_.RemoveObserver(observer);
+}
+
 void ServiceWorkerContextWrapper::AddObserver(
     ServiceWorkerContextObserver* observer) {
   observer_list_->AddObserver(observer);
@@ -137,4 +151,40 @@ void ServiceWorkerContextWrapper::RemoveObserver(
   observer_list_->RemoveObserver(observer);
 }
 
+void ServiceWorkerContextWrapper::GetRunningServiceWorkerInfo(
+    const GetRunningServiceWorkerInfoCallback& callback) {
+  // TODO(horo): Implement this.
+  NOTIMPLEMENTED();
+}
+
+void ServiceWorkerContextWrapper::OnWorkerStarted(int64 version_id,
+                                                  int process_id,
+                                                  int thread_id) {
+  NotifyStatusChangeObservers();
+}
+
+void ServiceWorkerContextWrapper::OnWorkerStopped(int64 version_id,
+                                                  int process_id,
+                                                  int thread_id) {
+  NotifyStatusChangeObservers();
+}
+
+void ServiceWorkerContextWrapper::OnVersionStateChanged(int64 version_id) {

[michaeln, 2014/05/05 21:01:15]

does the devtools use case care about this one?

+  NotifyStatusChangeObservers();
+}
+
+void ServiceWorkerContextWrapper::NotifyStatusChangeObservers() {
+  if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
+    BrowserThread::PostTask(
+        BrowserThread::UI,
+        FROM_HERE,
+        base::Bind(&ServiceWorkerContextWrapper::NotifyStatusChangeObservers,
+                   this));
+    return;
+  }
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  FOR_EACH_OBSERVER(
+      StatusChangeObserver, status_change_observers_, OnStatusChanged());
+}
+
 }  // namespace content