cros: Enable new cras audio handler by default

chrome/test/base/view_event_test_base.cc

Index: chrome/test/base/view_event_test_base.cc
diff --git a/chrome/test/base/view_event_test_base.cc b/chrome/test/base/view_event_test_base.cc
index 6b0bbe581a516ace074907ea077e997ebf969263..240f63fb098183ab7756b7b04175660902c9fbda 100644
--- a/chrome/test/base/view_event_test_base.cc
+++ b/chrome/test/base/view_event_test_base.cc
@@ -39,6 +39,10 @@
 #include "ui/base/ime/win/tsf_bridge.h"
 #endif
 
+#if defined(OS_CHROMEOS)
+#include "chromeos/audio/cras_audio_handler.h"
+#endif
+
 namespace {
 
 // View subclass that allows you to specify the preferred size.
@@ -112,6 +116,9 @@ void ViewEventTestBase::SetUp() {
   // also create the message center.
   message_center::MessageCenter::Initialize();
 #endif
+#if defined(OS_CHROMEOS)
+  chromeos::CrasAudioHandler::InitializeForTesting();
+#endif
   ash::Shell::CreateInstance(new ash::test::TestShellDelegate());
   context = ash::Shell::GetPrimaryRootWindow();
 #endif
@@ -143,6 +150,9 @@ void ViewEventTestBase::TearDown() {
 #if defined(OS_WIN)
 #else
   ash::Shell::DeleteInstance();
+#if defined(OS_CHROMEOS)
+  chromeos::CrasAudioHandler::Shutdown();
+#endif
 #if defined(ENABLE_MESSAGE_CENTER)
   // Ash Shell can't just live on its own without a browser process, we need to
   // also shut down the message center.