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diff --git a/Source/WebKit2/Shared/WebPreferencesStore.h b/Source/WebKit2/Shared/WebPreferencesStore.h
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+/*
+ * Copyright (C) 2010, 2011 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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.
+ */
+
+#ifndef WebPreferencesStore_h
+#define WebPreferencesStore_h
+
+#include "ArgumentDecoder.h"
+#include "ArgumentEncoder.h"
+#include <wtf/HashMap.h>
+#include <wtf/text/StringHash.h>
+#include <wtf/text/WTFString.h>
+
+namespace WebKit {
+
+// macro(KeyUpper, KeyLower, TypeNameUpper, TypeName, DefaultValue) 
+
+#define FOR_EACH_WEBKIT_BOOL_PREFERENCE(macro) \
+    macro(JavaScriptEnabled, javaScriptEnabled, Bool, bool, true) \
+    macro(LoadsImagesAutomatically, loadsImagesAutomatically, Bool, bool, true) \
+    macro(PluginsEnabled, pluginsEnabled, Bool, bool, true) \
+    macro(JavaEnabled, javaEnabled, Bool, bool, true) \
+    macro(OfflineWebApplicationCacheEnabled, offlineWebApplicationCacheEnabled, Bool, bool, false) \
+    macro(LocalStorageEnabled, localStorageEnabled, Bool, bool, true) \
+    macro(DatabasesEnabled, databasesEnabled, Bool, bool, true) \
+    macro(XSSAuditorEnabled, xssAuditorEnabled, Bool, bool, true) \
+    macro(FrameFlatteningEnabled, frameFlatteningEnabled, Bool, bool, false) \
+    macro(DeveloperExtrasEnabled, developerExtrasEnabled, Bool, bool, false) \
+    macro(PrivateBrowsingEnabled, privateBrowsingEnabled, Bool, bool, false) \
+    macro(TextAreasAreResizable, textAreasAreResizable, Bool, bool, true) \
+    macro(JavaScriptCanOpenWindowsAutomatically, javaScriptCanOpenWindowsAutomatically, Bool, bool, true) \
+    macro(HyperlinkAuditingEnabled, hyperlinkAuditingEnabled, Bool, bool, true) \
+    macro(NeedsSiteSpecificQuirks, needsSiteSpecificQuirks, Bool, bool, false) \
+    macro(AcceleratedCompositingEnabled, acceleratedCompositingEnabled, Bool, bool, true) \
+    macro(CompositingBordersVisible, compositingBordersVisible, Bool, bool, false) \
+    macro(CompositingRepaintCountersVisible, compositingRepaintCountersVisible, Bool, bool, false) \
+    macro(ForceFTPDirectoryListings, forceFTPDirectoryListings, Bool, bool, false) \
+    macro(TabsToLinks, tabsToLinks, Bool, bool, false) \
+    macro(DNSPrefetchingEnabled, dnsPrefetchingEnabled, Bool, bool, false) \
+    macro(WebArchiveDebugModeEnabled, webArchiveDebugModeEnabled, Bool, bool, false) \
+    macro(LocalFileContentSniffingEnabled, localFileContentSniffingEnabled, Bool, bool, false) \
+    macro(UsesPageCache, usesPageCache, Bool, bool, true) \
+    macro(AuthorAndUserStylesEnabled, authorAndUserStylesEnabled, Bool, bool, true) \
+    macro(PaginateDuringLayoutEnabled, paginateDuringLayoutEnabled, Bool, bool, false) \
+    macro(DOMPasteAllowed, domPasteAllowed, Bool, bool, false) \
+    macro(ShouldPrintBackgrounds, shouldPrintBackgrounds, Bool, bool, false) \
+    \
+
+#define FOR_EACH_WEBKIT_DOUBLE_PREFERENCE(macro) \
+    macro(PDFScaleFactor, pdfScaleFactor, Double, double, 0) \
+    \
+
+#define FOR_EACH_WEBKIT_UINT32_PREFERENCE(macro) \
+    macro(FontSmoothingLevel, fontSmoothingLevel, UInt32, uint32_t, FontSmoothingLevelMedium) \
+    macro(MinimumFontSize, minimumFontSize, UInt32, uint32_t, 0) \
+    macro(MinimumLogicalFontSize, minimumLogicalFontSize, UInt32, uint32_t, 9) \
+    macro(DefaultFontSize, defaultFontSize, UInt32, uint32_t, 16) \
+    macro(DefaultFixedFontSize, defaultFixedFontSize, UInt32, uint32_t, 13) \
+    macro(PDFDisplayMode, pdfDisplayMode, UInt32, uint32_t, 1) \
+    \
+
+#if PLATFORM(WIN)
+
+#define FOR_EACH_WEBKIT_FONT_FAMILY_PREFERENCE(macro) \
+    macro(StandardFontFamily, standardFontFamily, String, String, "Times New Roman") \
+    macro(CursiveFontFamily, cursiveFontFamily, String, String, "Comic Sans MS") \
+    macro(FantasyFontFamily, fantasyFontFamily, String, String, "Comic Sans MS") \
+    macro(FixedFontFamily, fixedFontFamily, String, String, "Courier New") \
+    macro(SansSerifFontFamily, sansSerifFontFamily, String, String, "Arial") \
+    macro(SerifFontFamily, serifFontFamily, String, String, "Times New Roman") \
+    \
+
+#else
+
+#define FOR_EACH_WEBKIT_FONT_FAMILY_PREFERENCE(macro) \
+    macro(StandardFontFamily, standardFontFamily, String, String, "Times") \
+    macro(CursiveFontFamily, cursiveFontFamily, String, String, "Apple Chancery") \
+    macro(FantasyFontFamily, fantasyFontFamily, String, String, "Papyrus") \
+    macro(FixedFontFamily, fixedFontFamily, String, String, "Courier") \
+    macro(SansSerifFontFamily, sansSerifFontFamily, String, String, "Helvetica") \
+    macro(SerifFontFamily, serifFontFamily, String, String, "Times") \
+    \
+
+#endif
+
+#define FOR_EACH_WEBKIT_STRING_PREFERENCE(macro) \
+    FOR_EACH_WEBKIT_FONT_FAMILY_PREFERENCE(macro) \
+    macro(DefaultTextEncodingName, defaultTextEncodingName, String, String, "ISO-8859-1") \
+    macro(FTPDirectoryTemplatePath, ftpDirectoryTemplatePath, String, String, "") \
+    \
+
+
+#define FOR_EACH_WEBKIT_PREFERENCE(macro) \
+    FOR_EACH_WEBKIT_BOOL_PREFERENCE(macro) \
+    FOR_EACH_WEBKIT_DOUBLE_PREFERENCE(macro) \
+    FOR_EACH_WEBKIT_UINT32_PREFERENCE(macro) \
+    FOR_EACH_WEBKIT_STRING_PREFERENCE(macro) \
+    \
+
+namespace WebPreferencesKey {
+
+#define DECLARE_KEY_GETTERS(KeyUpper, KeyLower, TypeName, Type, DefaultValue) const String& KeyLower##Key();
+
+    FOR_EACH_WEBKIT_PREFERENCE(DECLARE_KEY_GETTERS)
+
+#undef DECLARE_KEY_GETTERS
+
+} // namespace WebPreferencesKey
+
+struct WebPreferencesStore {
+    WebPreferencesStore();
+
+    void encode(CoreIPC::ArgumentEncoder* encoder) const;
+    static bool decode(CoreIPC::ArgumentDecoder*, WebPreferencesStore&);
+
+    // NOTE: The getters in this class have non-standard names to aid in the use of the preference macros.
+
+    bool setStringValueForKey(const String& key, const String& value);
+    String getStringValueForKey(const String& key) const;
+
+    bool setBoolValueForKey(const String& key, bool value);
+    bool getBoolValueForKey(const String& key) const;
+
+    bool setUInt32ValueForKey(const String& key, uint32_t value);
+    uint32_t getUInt32ValueForKey(const String& key) const;
+
+    bool setDoubleValueForKey(const String& key, double value);
+    double getDoubleValueForKey(const String& key) const;
+
+    static void overrideXSSAuditorEnabledForTestRunner(bool);
+    static void removeTestRunnerOverrides();
+
+    HashMap<String, String> m_stringValues;
+    HashMap<String, bool> m_boolValues;
+    HashMap<String, uint32_t> m_uint32Values;
+    HashMap<String, double> m_doubleValues;
+};
+
+} // namespace WebKit
+
+#endif // WebPreferencesStore_h