Loading: move core/fetch to platform/loader/fetch

third_party/WebKit/Source/core/fetch/CachedMetadataHandler.h

-// 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.
-
-#ifndef CachedMetadataHandler_h
-#define CachedMetadataHandler_h
-
-#include "platform/heap/Handle.h"
-#include "wtf/Forward.h"
-#include <stdint.h>
-
-namespace blink {
-
-class CachedMetadata;
-
-// Handler class for caching operations.
-class CachedMetadataHandler
-    : public GarbageCollectedFinalized<CachedMetadataHandler> {
- public:
-  enum CacheType {
-    SendToPlatform,  // send cache data to blink::Platform::cacheMetadata
-    CacheLocally     // cache only in Resource's member variables
-  };
-  virtual ~CachedMetadataHandler() {}
-  DEFINE_INLINE_VIRTUAL_TRACE() {}
-  // Caches the given metadata in association with this resource and suggests
-  // that the platform persist it. The dataTypeID is a pseudo-randomly chosen
-  // identifier that is used to distinguish data generated by the caller.
-  virtual void setCachedMetadata(uint32_t dataTypeID,
-                                 const char*,
-                                 size_t,
-                                 CacheType = SendToPlatform) = 0;
-  // Reset existing metadata, to allow setting new data.
-  virtual void clearCachedMetadata(CacheType = CacheLocally) = 0;
-  // Returns cached metadata of the given type associated with this resource.
-  // This cached metadata can be pruned at any time.
-  virtual PassRefPtr<CachedMetadata> cachedMetadata(
-      uint32_t dataTypeID) const = 0;
-  // Returns the encoding to which the cache is specific.
-  virtual String encoding() const = 0;
-
- protected:
-  CachedMetadataHandler() {}
-};
-}  // namespace blink
-
-#endif  // CachedMetadataHandler_h