Expose WorkerPool to blink

third_party/WebKit/Source/platform/BackgroundTask.h

Index: third_party/WebKit/Source/platform/BackgroundTask.h
diff --git a/third_party/WebKit/Source/platform/BackgroundTask.h b/third_party/WebKit/Source/platform/BackgroundTask.h
new file mode 100644
index 0000000000000000000000000000000000000000..31ca329f7889e934323f73952895abca74ab4fd1
--- /dev/null
+++ b/third_party/WebKit/Source/platform/BackgroundTask.h
@@ -0,0 +1,30 @@
+// Copyright 2015 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 BackgroundTask_h
+#define BackgroundTask_h
+
+#include "platform/PlatformExport.h"
+#include "wtf/Noncopyable.h"
+
+namespace blink {
+
+class PLATFORM_EXPORT BackgroundTask {

[kinuko, 2015/12/18 04:56:23]

Why do we need to introduce a new base task class?  Could this just take a
closure so that we can use threadSafeBind to make sure we safely deep-copy
parameters for the task when needed?

+    WTF_MAKE_NONCOPYABLE(BackgroundTask);
+public:
+    enum TaskSize {
+        TaskSizeShortRunningTask,
+        TaskSizeLongRunningTask,
+    };
+
+    static void postOnBackgroundThread(BackgroundTask*, TaskSize);
+
+    BackgroundTask() { }
+    virtual ~BackgroundTask();
+    virtual void run() = 0;
+};
+
+} // blink
+
+#endif