Host-side implementation of ARC Intent handler

components/arc/arc_bridge_service.cc

Index: components/arc/arc_bridge_service.cc
diff --git a/components/arc/arc_bridge_service.cc b/components/arc/arc_bridge_service.cc
index cbb8bde97c2481248725325287e778c39ccdde9d..d3448c515faef55fe3c529c321f4c617c05a62b2 100644
--- a/components/arc/arc_bridge_service.cc
+++ b/components/arc/arc_bridge_service.cc
@@ -177,6 +177,32 @@ void ArcBridgeService::CloseInputChannel() {
   FOR_EACH_OBSERVER(Observer, observer_list(), OnInputInstanceClosed());
 }
 
+void ArcBridgeService::OnIntentHelperInstanceReady(
+    IntentHelperInstancePtr intent_helper_ptr) {
+  DCHECK(CalledOnValidThread());
+  temporary_intent_helper_ptr_ = std::move(intent_helper_ptr);
+  temporary_intent_helper_ptr_.QueryVersion(
+      base::Bind(&ArcBridgeService::OnIntentHelperVersionReady,
+                 weak_factory_.GetWeakPtr()));
+}
+
+void ArcBridgeService::OnIntentHelperVersionReady(int32_t version) {
+  DCHECK(CalledOnValidThread());
+  intent_helper_ptr_ = std::move(temporary_intent_helper_ptr_);
+  intent_helper_ptr_.set_connection_error_handler(base::Bind(
+      &ArcBridgeService::CloseIntentHelperChannel, weak_factory_.GetWeakPtr()));
+  FOR_EACH_OBSERVER(Observer, observer_list(), OnIntentHelperInstanceReady());
+}
+
+void ArcBridgeService::CloseIntentHelperChannel() {
+  DCHECK(CalledOnValidThread());
+  if (!intent_helper_ptr_)
+    return;
+
+  intent_helper_ptr_.reset();
+  FOR_EACH_OBSERVER(Observer, observer_list(), OnIntentHelperInstanceClosed());
+}
+
 void ArcBridgeService::OnNotificationsInstanceReady(
     NotificationsInstancePtr notifications_ptr) {
   DCHECK(CalledOnValidThread());
@@ -328,6 +354,7 @@ void ArcBridgeService::CloseAllChannels() {
   CloseClipboardChannel();
   CloseImeChannel();
   CloseInputChannel();
+  CloseIntentHelperChannel();
   CloseNotificationsChannel();
   ClosePowerChannel();
   CloseProcessChannel();