[bindings] [devtools] Migrate the usage of ScriptValue.toJSONValue() to ScriptValue::to<JSONValuePt…

Source/bindings/core/v8/ScriptValue.cpp

 /*
  * Copyright (C) 2008, 2009, 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 56 matching lines @@
         return false;
 
     ScriptState::Scope scope(m_scriptState.get());
     v8::Handle<v8::Value> string = v8Value();
     if (string.IsEmpty() || !string->IsString())
         return false;
     result = toCoreString(v8::Handle<v8::String>::Cast(string));
     return true;
 }
 
-PassRefPtr<JSONValue> ScriptValue::toJSONValue(ScriptState* scriptState) const
-{
-    ASSERT(scriptState->contextIsValid());
-    ScriptState::Scope scope(scriptState);
-    return v8ToJSONValue(scriptState->isolate(), v8Value(), JSONValue::maxDepth);
-}
-
 ScriptValue ScriptValue::createNull(ScriptState* scriptState)
 {
     return ScriptValue(scriptState, v8::Null(scriptState->isolate()));
 }
 
 } // namespace blink