[GRC] Coordination Unit Graph Observer

services/resource_coordinator/coordination_unit/coordination_unit_impl.cc

Index: services/resource_coordinator/coordination_unit/coordination_unit_impl.cc
diff --git a/services/resource_coordinator/coordination_unit/coordination_unit_impl.cc b/services/resource_coordinator/coordination_unit/coordination_unit_impl.cc
index 7fd56636949211c79a1ae042f7971728dae02021..9de59de021b32bf00c40b2e8d8546b8f531e324f 100644
--- a/services/resource_coordinator/coordination_unit/coordination_unit_impl.cc
+++ b/services/resource_coordinator/coordination_unit/coordination_unit_impl.cc
@@ -162,10 +162,8 @@ bool CoordinationUnitImpl::AddChild(CoordinationUnitImpl* child) {
       children_.count(child) ? false : children_.insert(child).second;
 
   if (success) {
-    for (auto* observer :
-         on_child_added_event_observer_registry_.GetObserversForFilter(
-             child->id().type)) {
-      observer->OnChildAddedEvent(this, child);
+    for (auto& observer : observers_) {
+      observer.OnChildAdded(this, child);
     }
   }
 
@@ -196,10 +194,8 @@ bool CoordinationUnitImpl::RemoveChild(CoordinationUnitImpl* child) {
   bool success = children_removed > 0;
 
   if (success) {
-    for (auto* observer :
-         on_child_removed_event_observer_registry_.GetObserversForFilter(
-             child->id().type)) {
-      observer->OnChildRemovedEvent(this, child);
+    for (auto& observer : observers_) {
+      observer.OnChildRemoved(this, child);
     }
   }
 
@@ -210,10 +206,8 @@ void CoordinationUnitImpl::AddParent(CoordinationUnitImpl* parent) {
   DCHECK_EQ(0u, parents_.count(parent));
   parents_.insert(parent);
 
-  for (auto* observer :
-       on_parent_added_event_observer_registry_.GetObserversForFilter(
-           parent->id().type)) {
-    observer->OnParentAddedEvent(this, parent);
+  for (auto& observer : observers_) {
+    observer.OnParentAdded(this, parent);
   }
 
   RecalcCoordinationPolicy();
@@ -225,10 +219,8 @@ void CoordinationUnitImpl::RemoveParent(CoordinationUnitImpl* parent) {
 
   // TODO(matthalp, oysteine) should this go before or
   // after RecalcCoordinationPolicy?
-  for (auto* observer :
-       on_parent_removed_event_observer_registry_.GetObserversForFilter(
-           parent->id().type)) {
-    observer->OnParentRemovedEvent(this, parent);
+  for (auto& observer : observers_) {
+    observer.OnParentRemoved(this, parent);
   }
 
   RecalcCoordinationPolicy();
@@ -300,90 +292,19 @@ void CoordinationUnitImpl::SetProperty(mojom::PropertyType property,
 
   property_store_[property] = value;
 
-  for (auto* observer :
-       on_property_changed_event_observer_registry_.GetObserversForFilter(
-           property)) {
-    observer->OnPropertyChangedEvent(this, property);
+  for (auto& observer : observers_) {
+    observer.OnPropertyChanged(this, property);
   }
 }
 
-void CoordinationUnitImpl::WillBeDestroyed() {
-  for (auto* observer : on_will_be_destroyed_event_observer_registry_
-                            .GetObserversWithoutAFilter()) {
-    observer->OnWillBeDestroyedEvent(this);
-  }
-}
-
-void CoordinationUnitImpl::ObserveOnChildAddedEvent(
-    CoordinationUnitGraphObserver* observer,
-    CoordinationUnitType child_filter) {
-  on_child_added_event_observer_registry_.AddObserver(observer, child_filter);
-}
-
-void CoordinationUnitImpl::ObserveOnChildAddedEvent(
-    CoordinationUnitGraphObserver* observer) {
-  ObserveOnChildAddedEvent(
-      observer,
-      CoordinationUnitGraphObserverRegistry<CoordinationUnitType>::kNoFilter);
-}
-
-void CoordinationUnitImpl::ObserveOnParentAddedEvent(
-    CoordinationUnitGraphObserver* observer,
-    CoordinationUnitType parent_filter) {
-  on_parent_added_event_observer_registry_.AddObserver(observer, parent_filter);
-}
-
-void CoordinationUnitImpl::ObserveOnParentAddedEvent(
-    CoordinationUnitGraphObserver* observer) {
-  ObserveOnParentAddedEvent(
-      observer,
-      CoordinationUnitGraphObserverRegistry<CoordinationUnitType>::kNoFilter);
-}
-
-void CoordinationUnitImpl::ObserveOnPropertyChangedEvent(
-    CoordinationUnitGraphObserver* observer,
-    mojom::PropertyType property_filter) {
-  on_property_changed_event_observer_registry_.AddObserver(observer,
-                                                           property_filter);
-}
-
-void CoordinationUnitImpl::ObserveOnPropertyChangedEvent(
-    CoordinationUnitGraphObserver* observer) {
-  ObserveOnPropertyChangedEvent(
-      observer,
-      CoordinationUnitGraphObserverRegistry<mojom::PropertyType>::kNoFilter);
-}
-
-void CoordinationUnitImpl::ObserveOnChildRemovedEvent(
-    CoordinationUnitGraphObserver* observer,
-    CoordinationUnitType child_filter) {
-  on_child_removed_event_observer_registry_.AddObserver(observer, child_filter);
-}
-
-void CoordinationUnitImpl::ObserveOnChildRemovedEvent(
-    CoordinationUnitGraphObserver* observer) {
-  ObserveOnChildRemovedEvent(
-      observer,
-      CoordinationUnitGraphObserverRegistry<CoordinationUnitType>::kNoFilter);
-}
-
-void CoordinationUnitImpl::ObserveOnParentRemovedEvent(
-    CoordinationUnitGraphObserver* observer,
-    CoordinationUnitType parent_filter) {
-  on_parent_removed_event_observer_registry_.AddObserver(observer,
-                                                         parent_filter);
-}
-
-void CoordinationUnitImpl::ObserveOnParentRemovedEvent(
+void CoordinationUnitImpl::AddObserver(
     CoordinationUnitGraphObserver* observer) {
-  ObserveOnParentRemovedEvent(
-      observer,
-      CoordinationUnitGraphObserverRegistry<CoordinationUnitType>::kNoFilter);
+  observers_.AddObserver(observer);
 }
 
-void CoordinationUnitImpl::ObserveOnWillBeDestroyedEvent(
+void CoordinationUnitImpl::RemoveObserver(
     CoordinationUnitGraphObserver* observer) {
-  on_will_be_destroyed_event_observer_registry_.AddObserver(observer);
+  observers_.RemoveObserver(observer);
 }
 
 }  // namespace resource_coordinator