Make Service own ServiceContext.

services/shell/service_manager.h

 // Copyright 2014 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_SHELL_SERVICE_MANAGER_H_
 #define SERVICES_SHELL_SERVICE_MANAGER_H_
 
 #include <map>
 #include <memory>
 #include <vector>
@@ skipping 91 matching lines @@
   // If |service| is not null, there must not be an instance of the target
   // application already running. The Service Manager will create a new instance
   // and use |service| to control it.
   void Connect(std::unique_ptr<ConnectParams> params,
                mojom::ServicePtr service);
 
   // Returns a running instance matching |identity|. This might be an instance
   // running as a different user if one is available that services all users.
   Instance* GetExistingInstance(const Identity& identity) const;
 
-  void NotifyPIDAvailable(uint32_t id, base::ProcessId pid);
+  void NotifyPIDAvailable(const Identity& identity, base::ProcessId pid);
 
   // Attempt to complete the connection requested by |params| by connecting to
   // an existing instance. If there is an existing instance, |params| is taken,
   // and this function returns true.
   bool ConnectToExistingInstance(std::unique_ptr<ConnectParams>* params);
 
   Instance* CreateInstance(const Identity& source,
                            const Identity& target,
                            const CapabilitySpec& spec);
 
@@ skipping 35 matching lines @@
   base::WeakPtrFactory<ServiceManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceManager);
 };
 
 mojom::Connector::ConnectCallback EmptyConnectCallback();
 
 }  // namespace shell
 
 #endif  // SERVICES_SHELL_SERVICE_MANAGER_H_