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 2ccffa1f2202225b0791495d26f3a831ecd685e0..976c3dd895fb45febae403d5de3d75e4cefdc02c 100644
--- a/content/browser/service_worker/service_worker_context_wrapper.cc
+++ b/content/browser/service_worker/service_worker_context_wrapper.cc
@@ -14,9 +14,12 @@ namespace content {
 
 ServiceWorkerContextWrapper::ServiceWorkerContextWrapper()
     : observer_list_(
-          new ObserverListThreadSafe<ServiceWorkerContextObserver>()) {}
+          new ObserverListThreadSafe<ServiceWorkerContextObserver>()) {
+  observer_list_->AddObserver(this);
+}
 
 ServiceWorkerContextWrapper::~ServiceWorkerContextWrapper() {
+  observer_list_->RemoveObserver(this);
 }
 
 void ServiceWorkerContextWrapper::Init(
@@ -121,6 +124,26 @@ void ServiceWorkerContextWrapper::UnregisterServiceWorker(
       base::Bind(&FinishUnregistrationOnIO, continuation));
 }
 
+void ServiceWorkerContextWrapper::AddStatusChangeCallback(
+    const base::Callback<void(void)>& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  return status_change_callbacks_.push_back(callback);
+}
+
+void ServiceWorkerContextWrapper::RemoveStatusChangeCallback(
+    const base::Callback<void(void)>& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  for (std::vector<base::Callback<void(void)> >::iterator it =
+           status_change_callbacks_.begin();
+       it != status_change_callbacks_.end();) {
+    if (it->Equals(callback)) {
+      it = status_change_callbacks_.erase(it);
+    } else {
+      ++it;
+    }
+  }
+}
+
 void ServiceWorkerContextWrapper::AddObserver(
     ServiceWorkerContextObserver* observer) {
   observer_list_->AddObserver(observer);
@@ -131,4 +154,33 @@ 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) {
+  CallStatusChangeCallback();
+}
+
+void ServiceWorkerContextWrapper::OnWorkerStopped(int64 version_id,
+                                                  int process_id,
+                                                  int thread_id) {
+  CallStatusChangeCallback();
+}
+
+void ServiceWorkerContextWrapper::OnVersionStateChanged(int64 version_id) {
+  CallStatusChangeCallback();
+}
+
+void ServiceWorkerContextWrapper::CallStatusChangeCallback() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  for (size_t i = 0; i < status_change_callbacks_.size(); ++i) {
+    status_change_callbacks_[i].Run();

[michaeln, 2014/05/01 02:52:07]

callbacks could be removed or added while running a callback, you might want to
make a copy of the array prior to invoking them

[horo, 2014/05/01 04:52:32]

Done.
Changed to use FOR_EACH_OBSERVER.

+  }
+}
+
 }  // namespace content