Make aura work with mus

ui/aura/test/aura_mus_test_base.cc

Index: ui/aura/test/aura_mus_test_base.cc
diff --git a/base/test/scoped_command_line.cc b/ui/aura/test/aura_mus_test_base.cc
similarity index 31%
copy from base/test/scoped_command_line.cc
copy to ui/aura/test/aura_mus_test_base.cc
index c74d243f4488e9ea0cf4609459a9f34834497649..f16074942ec77a4395c9e796ecd5e203a94a7aee 100644
--- a/base/test/scoped_command_line.cc
+++ b/ui/aura/test/aura_mus_test_base.cc
@@ -2,21 +2,29 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "base/test/scoped_command_line.h"
+#include "ui/aura/test/aura_mus_test_base.h"
 
-namespace base {
+namespace aura {
 namespace test {
 
-ScopedCommandLine::ScopedCommandLine()
-    : original_command_line_(*base::CommandLine::ForCurrentProcess()) {}
+AuraMusWmTestBase::AuraMusWmTestBase() {}
 
-ScopedCommandLine::~ScopedCommandLine() {
-  *base::CommandLine::ForCurrentProcess() = original_command_line_;
+AuraMusWmTestBase::~AuraMusWmTestBase() {}
+
+void AuraMusWmTestBase::SetUp() {
+  EnableMus();
+  AuraTestBase::SetUp();
 }
 
-CommandLine* ScopedCommandLine::GetProcessCommandLine() {
-  return base::CommandLine::ForCurrentProcess();
+AuraMusClientTestBase::AuraMusClientTestBase() {}
+
+AuraMusClientTestBase::~AuraMusClientTestBase() {}
+
+void AuraMusClientTestBase::SetUp() {
+  EnableMus();
+  set_window_manager_delegate(nullptr);
+  AuraTestBase::SetUp();
 }
 
 }  // namespace test
-}  // namespace base
+}  // namespace aura