Revert of Converts chrome to aura-mus

chrome/browser/ui/ash/app_list/app_list_presenter_delegate_mus.cc

Index: chrome/browser/ui/ash/app_list/app_list_presenter_delegate_mus.cc
diff --git a/chrome/browser/ui/ash/app_list/app_list_presenter_delegate_mus.cc b/chrome/browser/ui/ash/app_list/app_list_presenter_delegate_mus.cc
index bfe45c53900c51b0b76adad9a79b967f0600e613..0163441c450406a9af99614869a652b6e174eb4b 100644
--- a/chrome/browser/ui/ash/app_list/app_list_presenter_delegate_mus.cc
+++ b/chrome/browser/ui/ash/app_list/app_list_presenter_delegate_mus.cc
@@ -9,8 +9,8 @@
 #include "ui/app_list/views/app_list_view.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
-#include "ui/views/mus/mus_client.h"
-#include "ui/views/mus/pointer_watcher_event_router2.h"
+#include "ui/views/mus/pointer_watcher_event_router.h"
+#include "ui/views/mus/window_manager_connection.h"
 
 namespace {
 
@@ -80,14 +80,16 @@
 }
 
 void AppListPresenterDelegateMus::OnShown(int64_t display_id) {
-  views::MusClient::Get()->pointer_watcher_event_router()->AddPointerWatcher(
-      this, false);
+  views::WindowManagerConnection::Get()
+      ->pointer_watcher_event_router()
+      ->AddPointerWatcher(this, false);
   DCHECK(presenter_->GetTargetVisibility());
 }
 
 void AppListPresenterDelegateMus::OnDismissed() {
-  views::MusClient::Get()->pointer_watcher_event_router()->RemovePointerWatcher(
-      this);
+  views::WindowManagerConnection::Get()
+      ->pointer_watcher_event_router()
+      ->RemovePointerWatcher(this);
   DCHECK(!presenter_->GetTargetVisibility());
 }