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.cc b/chrome/browser/service/service_process_control_manager.cc
new file mode 100644
index 0000000..821de9a
--- /dev/null
+++ b/chrome/browser/service/service_process_control_manager.cc
@@ -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.
+
+#include "chrome/browser/service/service_process_control_manager.h"
+
+#include "base/singleton.h"
+#include "base/stl_util-inl.h"
+#include "chrome/browser/chrome_thread.h"
+#include "chrome/browser/profile.h"
+#include "chrome/browser/service/service_process_control.h"
+
+ServiceProcessControlManager::ServiceProcessControlManager() {
+}
+
+ServiceProcessControlManager::~ServiceProcessControlManager() {
+  DCHECK(process_control_list_.empty());
+}
+
+ServiceProcessControl* ServiceProcessControlManager::GetProcessControl(
+    Profile* profile, ServiceProcessType type) {
+  DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
+
+  // TODO(hclam): We will have different service process for different types of
+  // service, but now we only create a new process for a different profile.
+  for (ServiceProcessControlList::iterator i = process_control_list_.begin();
+       i != process_control_list_.end(); ++i) {
+    if ((*i)->profile() == profile)
+      return *i;
+  }
+
+  // Couldn't find a ServiceProcess so construct a new one.
+  ServiceProcessControl* process  = new ServiceProcessControl(profile, type);
+  process_control_list_.push_back(process);
+  return process;
+}
+
+void ServiceProcessControlManager::Shutdown() {
+  STLDeleteElements(&process_control_list_);
+}
+
+// static
+ServiceProcessControlManager* ServiceProcessControlManager::instance() {
+  return Singleton<ServiceProcessControlManager>::get();
+}