Replace ScriptStreamerTask with blink::Task and threadSafeBind()

Source/bindings/core/v8/ScriptStreamerThread.cpp

 // Copyright 2014 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 "config.h"
 #include "bindings/core/v8/ScriptStreamerThread.h"
 
 #include "bindings/core/v8/ScriptStreamer.h"
 #include "platform/Task.h"
 #include "platform/TraceEvent.h"
@@ skipping 59 matching lines @@
     m_runningTask = false;
 }
 
 WebThread& ScriptStreamerThread::platformThread()
 {
     if (!isRunning())
         m_thread = adoptPtr(Platform::current()->createThread("ScriptStreamerThread"));
     return *m_thread;
 }
 
-ScriptStreamingTask::ScriptStreamingTask(WTF::PassOwnPtr<v8::ScriptCompiler::ScriptStreamingTask> task, ScriptStreamer* streamer)
-    : m_v8Task(task), m_streamer(streamer) { }
-
-void ScriptStreamingTask::run()
+void ScriptStreamerThread::runScriptStreamingTask(WTF::PassOwnPtr<v8::ScriptCompiler::ScriptStreamingTask> task, ScriptStreamer* streamer)
 {
     TRACE_EVENT0("v8", "v8.parseOnBackground");
     // Running the task can and will block: SourceStream::GetSomeData will get
     // called and it will block and wait for data from the network.
-    m_v8Task->Run();
-    m_streamer->streamingCompleteOnBackgroundThread();
+    task->Run();
+    streamer->streamingCompleteOnBackgroundThread();
     MutexLocker locker(*s_mutex);
-    ScriptStreamerThread* thread = ScriptStreamerThread::shared();
+    ScriptStreamerThread* thread = shared();
     if (thread)
         thread->taskDone();
     // If thread is 0, we're shutting down.
 }
 
 } // namespace blink