arc: Remove ArcServiceManager::Observer

components/arc/intent_helper/arc_intent_helper_bridge.cc

Index: components/arc/intent_helper/arc_intent_helper_bridge.cc
diff --git a/components/arc/intent_helper/arc_intent_helper_bridge.cc b/components/arc/intent_helper/arc_intent_helper_bridge.cc
index b4519b5a5d2aa9157fcddb9343b4f78e08fa8e1f..8eb43b30fb0df0a29539cde3dd7555efdc4c4240 100644
--- a/components/arc/intent_helper/arc_intent_helper_bridge.cc
+++ b/components/arc/intent_helper/arc_intent_helper_bridge.cc
@@ -24,6 +24,10 @@
 namespace arc {
 
 // static
+const char ArcIntentHelperBridge::kArcServiceName[] =
+    "arc::ArcIntentHelperBridge";
+
+// static
 const char ArcIntentHelperBridge::kArcIntentHelperPackageName[] =
     "org.chromium.arc.intent_helper";
 
@@ -153,6 +157,14 @@ bool ArcIntentHelperBridge::IsIntentHelperAvailable(GetResult* out_error_code) {
   return true;
 }
 
+// static
+ArcIntentHelperBridge* ArcIntentHelperBridge::Get(
+    ArcServiceManager* service_manager) {
+  if (!service_manager)
+    return nullptr;
+  return service_manager->GetService<ArcIntentHelperBridge>();
+}
+
 void ArcIntentHelperBridge::OnIntentFiltersUpdated(
     std::vector<IntentFilter> filters) {
   DCHECK(thread_checker_.CalledOnValidThread());