Initialize the message center as part of the testing browser process

chrome/test/base/view_event_test_platform_part_chromeos.cc

Index: chrome/test/base/view_event_test_platform_part_chromeos.cc
diff --git a/chrome/test/base/view_event_test_platform_part_chromeos.cc b/chrome/test/base/view_event_test_platform_part_chromeos.cc
index a18104b6c7ed8f5da2fc066bfdc69d26af82ea93..ae89a5784c8cb1d0debff4e7702e4ee148bbae65 100644
--- a/chrome/test/base/view_event_test_platform_part_chromeos.cc
+++ b/chrome/test/base/view_event_test_platform_part_chromeos.cc
@@ -22,7 +22,6 @@
 #include "ui/aura/env.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/display/display_switches.h"
-#include "ui/message_center/message_center.h"
 #include "ui/wm/core/wm_state.h"
 
 namespace {
@@ -48,9 +47,7 @@ class ViewEventTestPlatformPartChromeOS : public ViewEventTestPlatformPart {
 
 ViewEventTestPlatformPartChromeOS::ViewEventTestPlatformPartChromeOS(
     ui::ContextFactory* context_factory) {
-  // Ash Shell can't just live on its own without a browser process, we need to
-  // also create the message center.
-  message_center::MessageCenter::Initialize();
+  // Ash Shell can't just live on its own without a browser process.
   chromeos::DBusThreadManager::Initialize();
   bluez::BluezDBusManager::Initialize(
       chromeos::DBusThreadManager::Get()->GetSystemBus(),
@@ -82,9 +79,6 @@ ViewEventTestPlatformPartChromeOS::~ViewEventTestPlatformPartChromeOS() {
   chromeos::CrasAudioHandler::Shutdown();
   bluez::BluezDBusManager::Shutdown();
   chromeos::DBusThreadManager::Shutdown();
-  // Ash Shell can't just live on its own without a browser process, we need to
-  // also shut down the message center.
-  message_center::MessageCenter::Shutdown();
 }
 
 }  // namespace