Remove TRACE_EVENT indirection through blink::Platform

sky/engine/platform/TracedValue.h

-// 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.
-
-#ifndef SKY_ENGINE_PLATFORM_TRACEDVALUE_H_
-#define SKY_ENGINE_PLATFORM_TRACEDVALUE_H_
-
-#include "sky/engine/platform/EventTracer.h"
-
-#include "sky/engine/wtf/PassRefPtr.h"
-#include "sky/engine/wtf/text/WTFString.h"
-
-namespace blink {
-class JSONArray;
-class JSONObject;
-class JSONValue;
-
-class PLATFORM_EXPORT TracedValue : public TraceEvent::ConvertableToTraceFormat {
-    WTF_MAKE_NONCOPYABLE(TracedValue);
-
-public:
-    static PassRefPtr<TracedValue> create();
-
-    void endDictionary();
-    void endArray();
-
-    void setInteger(const char* name, int value);
-    void setDouble(const char* name, double);
-    void setBoolean(const char* name, bool value);
-    void setString(const char* name, const String& value);
-    void beginArray(const char* name);
-    void beginDictionary(const char* name);
-
-    void pushInteger(int);
-    void pushDouble(double);
-    void pushBoolean(bool);
-    void pushString(const String&);
-    void beginArray();
-    void beginDictionary();
-
-    virtual String asTraceFormat() const override;
-
-private:
-    TracedValue();
-    virtual ~TracedValue();
-
-    JSONObject* currentDictionary() const;
-    JSONArray* currentArray() const;
-
-    Vector<RefPtr<JSONValue> > m_stack;
-};
-
-} // namespace blink
-
-#endif  // SKY_ENGINE_PLATFORM_TRACEDVALUE_H_