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, 70 insertions, 0 deletions

diff --git a/chrome/browser/service/service_process_control_browsertest.cc b/chrome/browser/service/service_process_control_browsertest.cc
new file mode 100644
index 0000000..0dda5fa
--- /dev/null
+++ b/chrome/browser/service/service_process_control_browsertest.cc
@@ -0,0 +1,70 @@
+// 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/test/in_process_browser_test.h"
+#include "chrome/test/ui_test_utils.h"
+#include "chrome/browser/browser.h"
+#include "chrome/browser/service/service_process_control.h"
+#include "chrome/browser/service/service_process_control_manager.h"
+#include "chrome/common/service_process_type.h"
+
+class ServiceProcessControlBrowserTest
+    : public InProcessBrowserTest,
+      public ServiceProcessControl::MessageHandler {
+ protected:
+  void LaunchServiceProcessControl() {
+    ServiceProcessControl* process =
+        ServiceProcessControlManager::instance()->GetProcessControl(
+            browser()->profile(), kServiceProcessCloudPrint);
+    process_ = process;
+
+    // Launch the process asynchronously.
+    process->Launch(
+        NewRunnableMethod(
+            this,
+            &ServiceProcessControlBrowserTest::ProcessControlLaunched));
+
+    // Then run the message loop to keep things running.
+    ui_test_utils::RunMessageLoop();
+  }
+
+  void SayHelloAndWait() {
+   // Send a hello message to the service process and wait for a reply.
+    process()->SendHello();
+    ui_test_utils::RunMessageLoop();
+  }
+
+  void ProcessControlLaunched() {
+    process()->SetMessageHandler(this);
+    // Quit the current message.
+    MessageLoop::current()->Quit();
+  }
+
+  // ServiceProcessControl::MessageHandler implementations.
+  virtual void OnGoodDay() {
+    MessageLoop::current()->Quit();
+  }
+
+  ServiceProcessControl* process() { return process_; }
+
+ private:
+  ServiceProcessControl* process_;
+};
+
+#if defined(OS_WIN)
+// They way that the IPC is implemented only works on windows. This has to
+// change when we implement a different scheme for IPC.
+IN_PROC_BROWSER_TEST_F(ServiceProcessControlBrowserTest, LaunchAndIPC) {
+  LaunchServiceProcessControl();
+
+  // Make sure we are connected to the service process.
+  EXPECT_TRUE(process()->is_connected());
+  SayHelloAndWait();
+
+  // And then shutdown the service process.
+  EXPECT_TRUE(process()->Shutdown());
+}
+#endif
+
+DISABLE_RUNNABLE_METHOD_REFCOUNT(ServiceProcessControlBrowserTest);