Import TestRunner library into chromium.

content/shell/renderer/test_runner/WebTask.cpp

Index: content/shell/renderer/test_runner/WebTask.cpp
diff --git a/content/shell/renderer/test_runner/WebTask.cpp b/content/shell/renderer/test_runner/WebTask.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..0a21971df3c4eefca71afb8ae8af93d989a4024c
--- /dev/null
+++ b/content/shell/renderer/test_runner/WebTask.cpp
@@ -0,0 +1,53 @@
+// Copyright 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/renderer/test_runner/WebTask.h"
+
+#include <algorithm>
+#include "third_party/WebKit/public/web/WebKit.h"
+
+using namespace std;
+
+namespace WebTestRunner {
+
+WebTask::WebTask(WebTaskList* list)
+    : m_taskList(list)
+{
+    m_taskList->registerTask(this);
+}
+
+WebTask::~WebTask()
+{
+    if (m_taskList)
+        m_taskList->unregisterTask(this);
+}
+
+WebTaskList::WebTaskList()
+{
+}
+
+WebTaskList::~WebTaskList()
+{
+    revokeAll();
+}
+
+void WebTaskList::registerTask(WebTask* task)
+{
+    m_tasks.push_back(task);
+}
+
+void WebTaskList::unregisterTask(WebTask* task)
+{
+    vector<WebTask*>::iterator iter = find(m_tasks.begin(), m_tasks.end(), task);
+    if (iter != m_tasks.end())
+        m_tasks.erase(iter);
+}
+
+void WebTaskList::revokeAll()
+{
+    while (!m_tasks.empty())
+        m_tasks[0]->cancel();
+}
+
+}