add voice interaction shortcut.

chrome/browser/chromeos/arc/arc_service_launcher.cc

Index: chrome/browser/chromeos/arc/arc_service_launcher.cc
diff --git a/chrome/browser/chromeos/arc/arc_service_launcher.cc b/chrome/browser/chromeos/arc/arc_service_launcher.cc
index 0365cbb26fa1308638d39dd5481c2fa181dec9eb..f2cf660c0deaf943ba2ba379d2808d5984fecf13 100644
--- a/chrome/browser/chromeos/arc/arc_service_launcher.cc
+++ b/chrome/browser/chromeos/arc/arc_service_launcher.cc
@@ -16,6 +16,7 @@
 #include "chrome/browser/chromeos/arc/arc_play_store_enabled_preference_handler.h"
 #include "chrome/browser/chromeos/arc/arc_session_manager.h"
 #include "chrome/browser/chromeos/arc/arc_util.h"
+#include "chrome/browser/chromeos/arc/arc_voice_interaction_service.h"
 #include "chrome/browser/chromeos/arc/boot_phase_monitor/arc_boot_phase_monitor_bridge.h"
 #include "chrome/browser/chromeos/arc/downloads_watcher/arc_downloads_watcher_service.h"
 #include "chrome/browser/chromeos/arc/enterprise/arc_enterprise_reporting_service.h"
@@ -137,6 +138,8 @@ void ArcServiceLauncher::Initialize() {
   arc_service_manager_->AddService(
       base::MakeUnique<ArcTtsService>(arc_bridge_service));
   arc_service_manager_->AddService(
+      base::MakeUnique<ArcVoiceInteractionService>(arc_bridge_service));

[xc, 2017/03/09 05:05:47]

Can we use the flag to guard the creation of the service?

[Muyuan, 2017/03/09 20:44:44]

Not quite sure about this. Going to check with luis@

[Luis Héctor Chávez, 2017/03/14 02:11:32]

Yes, that also works.

+  arc_service_manager_->AddService(
       base::MakeUnique<ArcWallpaperService>(arc_bridge_service));
   arc_service_manager_->AddService(
       base::MakeUnique<GpuArcVideoServiceHost>(arc_bridge_service));