Move MediaPlayer, IntSizeHash to platform/

Source/core/platform/graphics/IntSizeHash.h

-/*
- * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- */
-#ifndef IntSizeHash_h
-#define IntSizeHash_h
-
-#include "platform/geometry/IntSize.h"
-#include "wtf/HashMap.h"
-#include "wtf/HashSet.h"
-
-namespace WTF {
-
-template<> struct IntHash<WebCore::IntSize> {
-    static unsigned hash(const WebCore::IntSize& key) { return pairIntHash(key.width(), key.height()); }
-    static bool equal(const WebCore::IntSize& a, const WebCore::IntSize& b) { return a == b; }
-    static const bool safeToCompareToEmptyOrDeleted = true;
-};
-
-template<> struct DefaultHash<WebCore::IntSize> {
-    typedef IntHash<WebCore::IntSize> Hash;
-};
-
-template<> struct HashTraits<WebCore::IntSize> : GenericHashTraits<WebCore::IntSize> {
-    static const bool emptyValueIsZero = true;
-    static const bool needsDestruction = false;
-    static void constructDeletedValue(WebCore::IntSize& slot) { new (NotNull, &slot) WebCore::IntSize(-1, -1); }
-    static bool isDeletedValue(const WebCore::IntSize& value) { return value.width() == -1 && value.height() == -1; }
-};
-
-} // namespace WTF
-
-#endif