ServiceProcessControl to launch a service process and communicate through IPC.

Added two class for use with service process:

ServiceProcessControl
Used by the browser to launch and connect to the service process, also used
to receive messages from the service process.

ServiceProcessControlManager
A singleton to manage multiple ServicProcessControl.

BUG=50244
TEST=browser_tests --gtest_filter=ServiceProcess*

Review URL: http://codereview.chromium.org/3032061

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@55826 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 45 insertions, 0 deletions

diff --git a/chrome/browser/service/service_process_control_manager.h b/chrome/browser/service/service_process_control_manager.h
new file mode 100644
index 0000000..c57f65c
--- /dev/null
+++ b/chrome/browser/service/service_process_control_manager.h
@@ -0,0 +1,45 @@
+// Copyright (c) 2010 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 CHROME_BROWSER_SERVICE_SERVICE_PROCESS_CONTROL_MANAGER_H_
+#define CHROME_BROWSER_SERVICE_SERVICE_PROCESS_CONTROL_MANAGER_H_
+
+#include <vector>
+
+#include "chrome/common/service_process_type.h"
+
+class Profile;
+class ServiceProcessControl;
+
+// ServiceProcessControlManager is a registrar for all ServiceProcess created
+// in the browser process. It is also a factory for creating new
+// ServiceProcess.
+class ServiceProcessControlManager {
+ public:
+  typedef std::vector<ServiceProcessControl*> ServiceProcessControlList;
+
+  ServiceProcessControlManager();
+  ~ServiceProcessControlManager();
+
+  // Get the ServiceProcess instance corresponding to |profile| and |type|.
+  // If such an instance doesn't exist a new instance is created.
+  //
+  // There will be at most one ServiceProcess for a |profile| and |type|
+  // pair.
+  //
+  // This method should only be accessed on the UI thread.
+  ServiceProcessControl* GetProcessControl(Profile* profile,
+                                           ServiceProcessType type);
+
+  // Destroy all ServiceProcess objects created.
+  void Shutdown();
+
+  // Return the instance of ServiceProcessControlManager.
+  static ServiceProcessControlManager* instance();
+
+ private:
+  ServiceProcessControlList process_control_list_;
+};
+
+#endif  // CHROME_BROWSER_SERVICE_SERVICE_PROCESS_CONTROL_MANAGER_H_