Make SameThreadTask/CrossThreadTask internal and remove platform/Task.h

third_party/WebKit/Source/platform/WebTaskRunner.cpp

 // 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.
 
 #include "public/platform/WebTaskRunner.h"
 
-#include "platform/Task.h"
+namespace blink {
 
-namespace blink {
+class SameThreadTask : public WebTaskRunner::Task {
+    USING_FAST_MALLOC(SameThreadTask);
+    WTF_MAKE_NONCOPYABLE(SameThreadTask);
+public:
+    explicit SameThreadTask(std::unique_ptr<SameThreadClosure> closure)
+        : m_closure(std::move(closure))
+    {
+    }
+
+    void run() override
+    {
+        (*m_closure)();
+    }
+
+private:
+    std::unique_ptr<SameThreadClosure> m_closure;
+};
+
+class CrossThreadTask : public WebTaskRunner::Task {
+    USING_FAST_MALLOC(CrossThreadTask);
+    WTF_MAKE_NONCOPYABLE(CrossThreadTask);
+public:
+    explicit CrossThreadTask(std::unique_ptr<CrossThreadClosure> closure)
+        : m_closure(std::move(closure))
+    {
+    }
+
+    void run() override
+    {
+        (*m_closure)();
+    }
+
+private:
+    std::unique_ptr<CrossThreadClosure> m_closure;
+};
 
 void WebTaskRunner::postTask(const WebTraceLocation& location, std::unique_ptr<CrossThreadClosure> task)
 {
     postTask(location, new CrossThreadTask(std::move(task)));
 }
 
 void WebTaskRunner::postDelayedTask(const WebTraceLocation& location, std::unique_ptr<CrossThreadClosure> task, long long delayMs)
 {
     postDelayedTask(location, new CrossThreadTask(std::move(task)), delayMs);
 }
 
 void WebTaskRunner::postTask(const WebTraceLocation& location, std::unique_ptr<SameThreadClosure> task)
 {
     postTask(location, new SameThreadTask(std::move(task)));
 }
 
 void WebTaskRunner::postDelayedTask(const WebTraceLocation& location, std::unique_ptr<SameThreadClosure> task, long long delayMs)
 {
     postDelayedTask(location, new SameThreadTask(std::move(task)), delayMs);
 }
 
 } // namespace blink