Adds ability for chrome to behave as mojo_runner

ui/views/mus/platform_test_helper_mus.cc

Index: ui/views/mus/platform_test_helper_mus.cc
diff --git a/ui/views/mus/platform_test_helper_mus.cc b/ui/views/mus/platform_test_helper_mus.cc
index 9f1d481644460c57061b00e6a0917c38e08f843f..bc99b4bdd7ea891bf212a2b6dd06aea6ad9d7a49 100644
--- a/ui/views/mus/platform_test_helper_mus.cc
+++ b/ui/views/mus/platform_test_helper_mus.cc
@@ -8,7 +8,6 @@
 #include "mojo/shell/background/background_shell.h"
 #include "mojo/shell/public/cpp/shell_client.h"
 #include "mojo/shell/public/cpp/shell_connection.h"
-#include "mojo/shell/runner/host/command_line_switch.h"
 #include "ui/views/mus/window_manager_connection.h"
 #include "url/gurl.h"
 
@@ -31,7 +30,7 @@ class PlatformTestHelperMus : public PlatformTestHelper {
     base::CommandLine::ForCurrentProcess()->AppendSwitch("use-new-edk");
 
     background_shell_.reset(new mojo::shell::BackgroundShell);
-    background_shell_->Init(std::vector<mojo::shell::CommandLineSwitch>());
+    background_shell_->Init(nullptr);
     shell_client_.reset(new DefaultShellClient);
     shell_connection_.reset(new mojo::ShellConnection(
         shell_client_.get(),