Replace remaining shell references with service manager

services/service_manager/runner/host/mach_broker.h

 // 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.
 
 #ifndef SERVICES_SERVICE_MANAGER_RUNNER_HOST_MACH_BROKER_H_
 #define SERVICES_SERVICE_MANAGER_RUNNER_HOST_MACH_BROKER_H_
 
 #include "base/mac/mach_port_broker.h"
 
 namespace base {
 template <typename T> struct DefaultSingletonTraits;
 }
 
 namespace service_manager {
 
-// A global singleton |MachBroker| is used by the shell to provide access to
-// Mach task ports for shell out-of-process applications.
+// A global singleton |MachBroker| is used by the service manager to provide
+// access to
+// Mach task ports for service manager out-of-process applications.
 class MachBroker {
  public:
   // Sends the task port of the current process to the parent over Mach IPC.
   // For use in child processes.
   static void SendTaskPortToParent();
 
-  // Returns the global |MachBroker|. For use in the shell.
+  // Returns the global |MachBroker|. For use in the service manager.
   static MachBroker* GetInstance();
 
   // Registers |pid| with a MACH_PORT_NULL task port in the port provider. A
   // child's pid must be registered before the broker will accept a task port
   // from that child.
   // Callers MUST acquire the lock given by GetLock() before calling this method
   // (and release the lock afterwards).
   void ExpectPid(base::ProcessHandle pid);
 
   // Removes |pid| from the port provider.
   // Callers MUST acquire the lock given by GetLock() before calling this method
   // (and release the lock afterwards).
   void RemovePid(base::ProcessHandle pid);
 
   base::Lock& GetLock() { return broker_.GetLock(); }
   base::PortProvider* port_provider() { return &broker_; }
 
  private:
   MachBroker();
   ~MachBroker();
   friend struct base::DefaultSingletonTraits<MachBroker>;
 
   base::MachPortBroker broker_;
 };
 
 }  // namespace service_manager
 
 #endif  // SERVICES_SERVICE_MANAGER_RUNNER_HOST_MACH_BROKER_H_