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-rw-r--r--chromium/third_party/WebKit/Source/core/dom/DocumentSharedObjectPool.cpp102
1 files changed, 0 insertions, 102 deletions
diff --git a/chromium/third_party/WebKit/Source/core/dom/DocumentSharedObjectPool.cpp b/chromium/third_party/WebKit/Source/core/dom/DocumentSharedObjectPool.cpp
deleted file mode 100644
index 985f04cdde9..00000000000
--- a/chromium/third_party/WebKit/Source/core/dom/DocumentSharedObjectPool.cpp
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Copyright (C) 2012, 2013 Apple 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:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "config.h"
-#include "core/dom/DocumentSharedObjectPool.h"
-
-#include "core/dom/Element.h"
-
-namespace WebCore {
-
-class ShareableElementDataCacheKey {
-public:
- ShareableElementDataCacheKey(const Attribute* attributes, unsigned attributeCount)
- : m_attributes(attributes)
- , m_attributeCount(attributeCount)
- { }
-
- bool operator!=(const ShareableElementDataCacheKey& other) const
- {
- if (m_attributeCount != other.m_attributeCount)
- return true;
- return memcmp(m_attributes, other.m_attributes, sizeof(Attribute) * m_attributeCount);
- }
-
- unsigned hash() const
- {
- return StringHasher::hashMemory(m_attributes, m_attributeCount * sizeof(Attribute));
- }
-
-private:
- const Attribute* m_attributes;
- unsigned m_attributeCount;
-};
-
-class ShareableElementDataCacheEntry {
-public:
- ShareableElementDataCacheEntry(const ShareableElementDataCacheKey& k, PassRefPtr<ShareableElementData> v)
- : key(k)
- , value(v)
- { }
-
- ShareableElementDataCacheKey key;
- RefPtr<ShareableElementData> value;
-};
-
-PassRefPtr<ShareableElementData> DocumentSharedObjectPool::cachedShareableElementDataWithAttributes(const Vector<Attribute>& attributes)
-{
- ASSERT(!attributes.isEmpty());
-
- ShareableElementDataCacheKey cacheKey(attributes.data(), attributes.size());
- unsigned cacheHash = cacheKey.hash();
-
- ShareableElementDataCache::iterator cacheIterator = m_shareableElementDataCache.add(cacheHash, nullptr).iterator;
- if (cacheIterator->value && cacheIterator->value->key != cacheKey)
- cacheHash = 0;
-
- RefPtr<ShareableElementData> elementData;
- if (cacheHash && cacheIterator->value)
- elementData = cacheIterator->value->value;
- else
- elementData = ShareableElementData::createWithAttributes(attributes);
-
- if (!cacheHash || cacheIterator->value)
- return elementData.release();
-
- cacheIterator->value = adoptPtr(new ShareableElementDataCacheEntry(ShareableElementDataCacheKey(elementData->m_attributeArray, elementData->length()), elementData));
-
- return elementData.release();
-}
-
-DocumentSharedObjectPool::DocumentSharedObjectPool()
-{
-}
-
-DocumentSharedObjectPool::~DocumentSharedObjectPool()
-{
-}
-
-}