Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/fileapi/Blob.cpp

 /*
  * Copyright (C) 2010 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 20 matching lines @@
 #include "core/fileapi/Blob.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/dom/DOMURL.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/fileapi/BlobPropertyBag.h"
 #include "core/frame/UseCounter.h"
 #include "platform/blob/BlobRegistry.h"
 #include "platform/blob/BlobURL.h"
-#include <memory>
 
 namespace blink {
 
 namespace {
 
 class BlobURLRegistry final : public URLRegistry {
 public:
     void registerURL(SecurityOrigin*, const KURL&, URLRegistrable*) override;
     void unregisterURL(const KURL&) override;
 
@@ skipping 41 matching lines @@
     if (!options.type().containsOnlyASCII()) {
         exceptionState.throwDOMException(SyntaxError, "The 'type' property must consist of ASCII characters.");
         return nullptr;
     }
 
     ASSERT(options.hasEndings());
     bool normalizeLineEndingsToNative = options.endings() == "native";
     if (normalizeLineEndingsToNative)
         UseCounter::count(context, UseCounter::FileAPINativeLineEndings);
 
-    std::unique_ptr<BlobData> blobData = BlobData::create();
+    OwnPtr<BlobData> blobData = BlobData::create();
     blobData->setContentType(options.type().lower());
 
     populateBlobData(blobData.get(), blobParts, normalizeLineEndingsToNative);
 
     long long blobSize = blobData->length();
     return new Blob(BlobDataHandle::create(std::move(blobData), blobSize));
 }
 
 Blob* Blob::create(const unsigned char* data, size_t bytes, const String& contentType)
 {
     ASSERT(data);
 
-    std::unique_ptr<BlobData> blobData = BlobData::create();
+    OwnPtr<BlobData> blobData = BlobData::create();
     blobData->setContentType(contentType);
     blobData->appendBytes(data, bytes);
     long long blobSize = blobData->length();
 
     return new Blob(BlobDataHandle::create(std::move(blobData), blobSize));
 }
 
 // static
 void Blob::populateBlobData(BlobData* blobData, const HeapVector<ArrayBufferOrArrayBufferViewOrBlobOrUSVString>& parts, bool normalizeLineEndingsToNative)
 {
@@ skipping 44 matching lines @@
 {
     if (isClosed()) {
         exceptionState.throwDOMException(InvalidStateError, "Blob has been closed.");
         return nullptr;
     }
 
     long long size = this->size();
     clampSliceOffsets(size, start, end);
 
     long long length = end - start;
-    std::unique_ptr<BlobData> blobData = BlobData::create();
+    OwnPtr<BlobData> blobData = BlobData::create();
     blobData->setContentType(contentType);
     blobData->appendBlob(m_blobDataHandle, start, length);
     return Blob::create(BlobDataHandle::create(std::move(blobData), length));
 }
 
 void Blob::close(ExecutionContext* executionContext, ExceptionState& exceptionState)
 {
     if (isClosed()) {
         exceptionState.throwDOMException(InvalidStateError, "Blob has been closed.");
         return;
     }
 
     // Dereferencing a Blob that has been closed should result in
     // a network error. Revoke URLs registered against it through
     // its UUID.
     DOMURL::revokeObjectUUID(executionContext, uuid());
 
     // A Blob enters a 'readability state' of closed, where it will report its
     // size as zero. Blob and FileReader operations now throws on
     // being passed a Blob in that state. Downstream uses of closed Blobs
     // (e.g., XHR.send()) consider them as empty.
-    std::unique_ptr<BlobData> blobData = BlobData::create();
+    OwnPtr<BlobData> blobData = BlobData::create();
     blobData->setContentType(type());
     m_blobDataHandle = BlobDataHandle::create(std::move(blobData), 0);
     m_isClosed = true;
 }
 
 void Blob::appendTo(BlobData& blobData) const
 {
     blobData.appendBlob(m_blobDataHandle, 0, m_blobDataHandle->size());
 }
 
 URLRegistry& Blob::registry() const
 {
     return BlobURLRegistry::registry();
 }
 
 } // namespace blink