author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 01:32:07 +0300 | |
changeset 2 | 303757a437d3 |
parent 0 | 4f2f89ce4247 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (C) 2010 Google Inc. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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|
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#ifndef BlobItem_h |
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#define BlobItem_h |
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|
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#include "PlatformString.h" |
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#include <wtf/OwnPtr.h> |
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#include <wtf/PassRefPtr.h> |
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#include <wtf/RefCounted.h> |
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#include <wtf/Vector.h> |
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#include <wtf/text/CString.h> |
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namespace WebCore { |
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class ByteArrayBlobItem; |
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class DataBlobItem; |
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class DataRangeBlobItem; |
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class FileBlobItem; |
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class FileRangeBlobItem; |
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class StringBlobItem; |
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|
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// A base interface for all arbitrary-data-object component items. |
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// The BlobItem and its subclasses are structured like the following: |
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// BlobItem |
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// | |
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// +-------> DataBlobItem |
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// | | |
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// | +---------> StringBlobItem |
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// | +---------> ByteArrayBlobItem |
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// | +---------> DataRangeBlobItem |
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// | |
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// +-------> FileBlobItem |
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// | |
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// +---------> FileRangeBlobItem |
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// |
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class BlobItem : public RefCounted<BlobItem> { |
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public: |
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virtual ~BlobItem() { } |
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virtual unsigned long long size() const = 0; |
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virtual const DataBlobItem* toDataBlobItem() const { return 0; } |
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virtual const StringBlobItem* toStringBlobItem() const { return 0; } |
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virtual const ByteArrayBlobItem* toByteArrayBlobItem() const { return 0; } |
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virtual const FileBlobItem* toFileBlobItem() const { return 0; } |
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#if ENABLE(BLOB_SLICE) |
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virtual const DataRangeBlobItem* toDataRangeBlobItem() const { return 0; } |
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virtual const FileRangeBlobItem* toFileRangeBlobItem() const { return 0; } |
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// Note: no external methods except for Blob::slice should call this. |
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virtual PassRefPtr<BlobItem> slice(long long start, long long length) = 0; |
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#endif // ENABLE(BLOB_SLICE) |
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protected: |
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BlobItem() { } |
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}; |
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typedef Vector<RefPtr<BlobItem> > BlobItemList; |
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class DataBlobItem : public BlobItem { |
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public: |
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virtual const char* data() const = 0; |
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// BlobItem methods. |
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virtual const DataBlobItem* toDataBlobItem() const { return this; } |
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#if ENABLE(BLOB_SLICE) |
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virtual PassRefPtr<BlobItem> slice(long long start, long long length); |
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#endif // ENABLE(BLOB_SLICE) |
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}; |
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class FileBlobItem : public BlobItem { |
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public: |
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static PassRefPtr<BlobItem> create(const String& path); |
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#if ENABLE(DIRECTORY_UPLOAD) |
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static PassRefPtr<BlobItem> create(const String& path, const String& relativePath); |
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#endif |
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virtual const String& name() const { return m_fileName; } |
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virtual const String& path() const { return m_path; } |
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#if ENABLE(DIRECTORY_UPLOAD) |
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const String& relativePath() const { return m_relativePath; } |
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#endif |
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// BlobItem methods. |
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virtual unsigned long long size() const; |
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virtual const FileBlobItem* toFileBlobItem() const { return this; } |
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#if ENABLE(BLOB_SLICE) |
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virtual PassRefPtr<BlobItem> slice(long long start, long long length); |
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#endif // ENABLE(BLOB_SLICE) |
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protected: |
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FileBlobItem(const String& path); |
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#if ENABLE(DIRECTORY_UPLOAD) |
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FileBlobItem(const String& path, const String& relativePath); |
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#endif |
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String m_path; |
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String m_fileName; |
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#if ENABLE(DIRECTORY_UPLOAD) |
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String m_relativePath; |
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#endif |
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}; |
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class StringBlobItem : public DataBlobItem { |
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public: |
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static PassRefPtr<BlobItem> create(const CString&); |
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const CString& cstr() const { return m_data; } |
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// BlobItem methods. |
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virtual unsigned long long size() const { return m_data.length(); } |
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virtual const StringBlobItem* toStringBlobItem() const { return this; } |
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// DataBlobItem methods. |
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virtual const char* data() const { return m_data.data(); } |
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private: |
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StringBlobItem(const CString&); |
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CString m_data; |
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}; |
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class ByteArrayBlobItem : public DataBlobItem { |
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public: |
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static PassRefPtr<BlobItem> create(const char* data, size_t size); |
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// BlobItem methods. |
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virtual unsigned long long size() const { return m_bytesArray.size(); } |
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virtual const ByteArrayBlobItem* toByteArrayBlobItem() const { return this; } |
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// DataBlobItem methods. |
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virtual const char* data() const { return m_bytesArray.data(); } |
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private: |
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ByteArrayBlobItem(const char* data, size_t size); |
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Vector<char> m_bytesArray; |
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}; |
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#if ENABLE(BLOB_SLICE) |
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// BlobItem class for sliced data (string or bytes-array). |
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class DataRangeBlobItem : public DataBlobItem { |
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public: |
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static PassRefPtr<BlobItem> create(PassRefPtr<DataBlobItem>, long long start, long long length); |
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// BlobItem methods. |
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virtual unsigned long long size() const { return m_length; } |
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virtual const DataRangeBlobItem* toDataRangeBlobItem() const { return this; } |
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// DataBlobItem methods. |
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virtual const char* data() const; |
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private: |
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DataRangeBlobItem(PassRefPtr<DataBlobItem>, long long start, long long length); |
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RefPtr<DataBlobItem> m_item; |
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long long m_start; |
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long long m_length; |
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}; |
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class FileRangeBlobItem : public FileBlobItem { |
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public: |
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static PassRefPtr<BlobItem> create(const String& path, long long start, long long length, double snapshotModificationTime); |
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long long start() const { return m_start; } |
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double snapshotModificationTime() const { return m_snapshotModificationTime; } |
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// BlobItem methods. |
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virtual unsigned long long size() const { return m_length; } |
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virtual const FileRangeBlobItem* toFileRangeBlobItem() const { return this; } |
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// FileBlobItem methods. |
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virtual const String& name() const { return m_uniqueName; } |
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private: |
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FileRangeBlobItem(const String& path, long long start, long long length, double snapshotModificationTime); |
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long long m_start; |
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long long m_length; |
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String m_uniqueName; |
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double m_snapshotModificationTime; |
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}; |
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#endif // ENABLE(BLOB_SLICE) |
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} // namespace WebCore |
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#endif // BlobItem_h |