Host side implementation of ARC tts.

components/arc/arc_bridge_host_impl.cc

Index: components/arc/arc_bridge_host_impl.cc
diff --git a/components/arc/arc_bridge_host_impl.cc b/components/arc/arc_bridge_host_impl.cc
index c2c85954bd04f8519a33bbff05aa446d17f54ba8..e813b43a0678235179dea3da3a02e6ea56bdf2f3 100644
--- a/components/arc/arc_bridge_host_impl.cc
+++ b/components/arc/arc_bridge_host_impl.cc
@@ -174,6 +174,10 @@ void ArcBridgeHostImpl::OnStorageManagerInstanceReady(
                   std::move(storage_manager_ptr));
 }
 
+void ArcBridgeHostImpl::OnTtsInstanceReady(mojom::TtsInstancePtr tts_ptr) {
+  OnInstanceReady(ArcBridgeService::Get()->tts(), std::move(tts_ptr));
+}
+
 void ArcBridgeHostImpl::OnVideoInstanceReady(
     mojom::VideoInstancePtr video_ptr) {
   OnInstanceReady(ArcBridgeService::Get()->video(), std::move(video_ptr));