Move Resource subclasses out of fetch/

Source/core/fetch/TextResource.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 "core/fetch/TextResource.h"
-
-#include "core/html/parser/TextResourceDecoder.h"
-#include "platform/SharedBuffer.h"
-
-namespace blink {
-
-TextResource::TextResource(const ResourceRequest& resourceRequest, Resource::Type type, const String& mimeType, const String& charset)
-    : Resource(resourceRequest, type)
-    , m_decoder(TextResourceDecoder::create(mimeType, charset))
-{
-}
-
-TextResource::~TextResource()
-{
-}
-
-void TextResource::setEncoding(const String& chs)
-{
-    m_decoder->setEncoding(chs, TextResourceDecoder::EncodingFromHTTPHeader);
-}
-
-String TextResource::encoding() const
-{
-    return m_decoder->encoding().name();
-}
-
-String TextResource::decodedText() const
-{
-    ASSERT(m_data);
-
-    String text = m_decoder->decode(m_data->data(), encodedSize());
-    text.append(m_decoder->flush());
-    return text;
-}
-
-} // namespace blink