Adds the ability to run chromeos with mus

chrome/test/base/mojo_test_connector.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/test/base/mojo_test_connector.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
+#include "chrome/common/chrome_switches.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/service_names.mojom.h"
 #include "content/public/test/test_launcher.h"
 #include "mojo/edk/embedder/embedder.h"
 #include "mojo/edk/embedder/pending_process_connection.h"
 #include "mojo/edk/embedder/platform_channel_pair.h"
 #include "mojo/edk/embedder/scoped_ipc_support.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
 #include "services/catalog/store.h"
 #include "services/service_manager/background/background_service_manager.h"
@@ skipping 17 matching lines @@
   explicit MojoTestState(
       service_manager::BackgroundServiceManager* background_service_manager)
       : background_service_manager_(background_service_manager),
         weak_factory_(this) {}
   ~MojoTestState() override {}
 
   void Init(base::CommandLine* command_line,
             base::TestLauncher::LaunchOptions* test_launch_options) {
     command_line->AppendSwitch(MojoTestConnector::kTestSwitch);
     command_line->AppendSwitch(switches::kChildProcess);
+    command_line->AppendSwitchASCII(switches::kMusConfig, switches::kMash);
 
     platform_channel_ = base::MakeUnique<mojo::edk::PlatformChannelPair>();
 
     platform_channel_->PrepareToPassClientHandleToChildProcess(
         command_line, &handle_passing_info_);
 #if defined(OS_WIN)
     test_launch_options->inherit_handles = true;
     test_launch_options->handles_to_inherit = &handle_passing_info_;
 #if defined(OFFICIAL_BUILD)
     CHECK(false) << "Launching mojo process with inherit_handles is insecure!";
@@ skipping 151 matching lines @@
 MojoTestConnector::~MojoTestConnector() {}
 
 std::unique_ptr<content::TestState> MojoTestConnector::PrepareForTest(
     base::CommandLine* command_line,
     base::TestLauncher::LaunchOptions* test_launch_options) {
   auto test_state =
       base::MakeUnique<MojoTestState>(&background_service_manager_);
   test_state->Init(command_line, test_launch_options);
   return test_state;
 }