[content shell] add support for invoking testRunner.notifyDone in a different process

content/shell/notify_done_forwarder.cc

Index: content/shell/notify_done_forwarder.cc
diff --git a/content/shell/notify_done_forwarder.cc b/content/shell/notify_done_forwarder.cc
new file mode 100644
index 0000000000000000000000000000000000000000..7de67edff3c9534965fc5cf14f4e7f0cd537cbfe
--- /dev/null
+++ b/content/shell/notify_done_forwarder.cc
@@ -0,0 +1,33 @@
+// Copyright (c) 2013 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 "content/shell/notify_done_forwarder.h"
+
+#include "content/shell/shell_messages.h"
+#include "content/shell/webkit_test_controller.h"
+
+namespace content {
+
+DEFINE_WEB_CONTENTS_USER_DATA_KEY(NotifyDoneForwarder);
+
+NotifyDoneForwarder::NotifyDoneForwarder(WebContents* web_contents)
+    : WebContentsObserver(web_contents) {}
+
+NotifyDoneForwarder::~NotifyDoneForwarder() {}
+
+bool NotifyDoneForwarder::OnMessageReceived(const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(NotifyDoneForwarder, message)
+    IPC_MESSAGE_HANDLER(ShellViewHostMsg_TestFinishedInSecondaryWindow,
+                        OnTestFinishedInSecondaryWindow)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void NotifyDoneForwarder::OnTestFinishedInSecondaryWindow() {
+  WebKitTestController::Get()->TestFinishedInSecondaryWindow();
+}
+
+}  // namespace content