mash: Have chrome set itself as a controller interface for changing volume

chrome/browser/ui/ash/ash_util.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/ash/ash_util.h"
 
 #include "ash/common/accelerators/accelerator_controller.h"
 #include "ash/common/wm_shell.h"
 #include "build/build_config.h"
 #include "chrome/browser/ui/ash/ash_init.h"
+#include "content/public/common/service_names.mojom.h"
 #include "services/service_manager/runner/common/client_util.h"
 #include "ui/aura/window_event_dispatcher.h"
 
+namespace ash_util {
+
+const char* GetAshServiceName() {
+  // Under mash the ash process provides the service.
+  if (chrome::IsRunningInMash())
+    return "ash";
+
+  // Under classic ash the browser process provides the service.
+  return content::mojom::kBrowserServiceName;
+}
+
+}  // namespace ash_util
+
 namespace chrome {
 
 bool ShouldOpenAshOnStartup() {
   return !IsRunningInMash();
 }
 
 bool IsRunningInMash() {
   return service_manager::ServiceManagerIsRemote();
 }
 
 bool IsAcceleratorDeprecated(const ui::Accelerator& accelerator) {
   // When running in mash the browser doesn't handle ash accelerators.
   if (chrome::IsRunningInMash())
     return false;
 
   return ash::WmShell::Get()->accelerator_controller()->IsDeprecated(
       accelerator);
 }
 
 }  // namespace chrome