Pass application ids via AcceptConnection & ConnectToApplication callback.

mojo/shell/application_instance.h

 // Copyright 2015 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 MOJO_SHELL_APPLICATION_INSTANCE_H_
 #define MOJO_SHELL_APPLICATION_INSTANCE_H_
 
 #include <stdint.h>
 
 #include <set>
@@ skipping 37 matching lines @@
 
   void ConnectToClient(scoped_ptr<ConnectToApplicationParams> params);
 
   // Required before GetProcessId can be called.
   void SetNativeRunner(NativeRunner* native_runner);
 
   void BindPIDReceiver(InterfaceRequest<mojom::PIDReceiver> pid_receiver);
 
   Application* application() { return application_.get(); }
   const Identity& identity() const { return identity_; }
-  int id() const { return id_; }
+  uint32_t id() const { return id_; }
   base::ProcessId pid() const { return pid_; }
   void set_pid(base::ProcessId pid) { pid_ = pid; }
   base::Closure on_application_end() const { return on_application_end_; }
   void set_requesting_content_handler_id(uint32_t id) {
     requesting_content_handler_id_ = id;
   }
   uint32_t requesting_content_handler_id() const {
     return requesting_content_handler_id_;
   }
 
  private:
   // Shell implementation:
   void ConnectToApplication(
       URLRequestPtr app_request,
       InterfaceRequest<ServiceProvider> services,
       ServiceProviderPtr exposed_services,
       CapabilityFilterPtr filter,
       const ConnectToApplicationCallback& callback) override;
   void QuitApplication() override;
 
   // PIDReceiver implementation:
   void SetPID(uint32_t pid) override;
 
-  static int GenerateUniqueID();
+  uint32_t GenerateUniqueID() const;
 
   void CallAcceptConnection(scoped_ptr<ConnectToApplicationParams> params);
 
   void OnConnectionError();
 
   void OnQuitRequestedResult(bool can_quit);
 
   void DestroyRunner();
 
   ApplicationManager* const manager_;
   // An id that identifies this instance. Distinct from pid, as a single process
   // may vend multiple application instances, and this object may exist before a
   // process is launched.
-  const int id_;
+  const uint32_t id_;
   const Identity identity_;
   const bool allow_any_application_;
   uint32_t requesting_content_handler_id_;
   base::Closure on_application_end_;
   ApplicationPtr application_;
   Binding<Shell> binding_;
   Binding<mojom::PIDReceiver> pid_receiver_binding_;
   bool queue_requests_;
   std::vector<ConnectToApplicationParams*> queued_client_requests_;
   NativeRunner* native_runner_;
   base::ProcessId pid_;
 
   DISALLOW_COPY_AND_ASSIGN(ApplicationInstance);
 };
 
 }  // namespace shell
 }  // namespace mojo
 
 #endif  // MOJO_SHELL_APPLICATION_INSTANCE_H_