Converts more services to use aura-mus

mash/task_viewer/task_viewer.h

Index: mash/task_viewer/task_viewer.h
diff --git a/mash/task_viewer/task_viewer.h b/mash/task_viewer/task_viewer.h
index cf1b8ecdd58dc28eb45da7437f1756175361e794..0f15d31db85123b19bd3db46a69d215fb78c858f 100644
--- a/mash/task_viewer/task_viewer.h
+++ b/mash/task_viewer/task_viewer.h
@@ -19,7 +19,6 @@
 namespace views {
 class AuraInit;
 class Widget;
-class WindowManagerConnection;
 }
 
 namespace mash {
@@ -53,7 +52,6 @@ class TaskViewer
 
   tracing::Provider tracing_;
   std::unique_ptr<views::AuraInit> aura_init_;
-  std::unique_ptr<views::WindowManagerConnection> window_manager_connection_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskViewer);
 };