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diff --git a/Source/WebKit2/UIProcess/Plugins/PluginInfoStore.h b/Source/WebKit2/UIProcess/Plugins/PluginInfoStore.h
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+/*
+ * Copyright (C) 2010 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 PluginInfoStore_h
+#define PluginInfoStore_h
+
+#include <WebCore/PluginData.h>
+
+namespace WebCore {
+    class KURL;
+}
+
+namespace WebKit {
+
+class PluginInfoStore {
+public:
+    PluginInfoStore();
+
+    void setAdditionalPluginsDirectories(const Vector<String>&);
+
+    void refresh();
+    void getPlugins(Vector<WebCore::PluginInfo>& plugins);
+    
+    // Represents a single plug-in.
+    struct Plugin {
+        String path;
+        WebCore::PluginInfo info;
+#if PLATFORM(MAC)
+        cpu_type_t pluginArchitecture;
+        String bundleIdentifier;
+        unsigned versionNumber;
+#elif PLATFORM(WIN)
+        uint64_t fileVersion;
+#endif
+    };
+
+    // Returns the info for a plug-in that can handle the given MIME type.
+    // If the MIME type is null, the file extension of the given url will be used to infer the
+    // plug-in type. In that case, mimeType will be filled in with the right MIME type.
+    Plugin findPlugin(String& mimeType, const WebCore::KURL& url);
+    
+    // Returns the info for the plug-in with the given path.
+    Plugin infoForPluginWithPath(const String& pluginPath);
+
+private:
+
+    Plugin findPluginForMIMEType(const String& mimeType);
+    Plugin findPluginForExtension(const String& extension, String& mimeType);
+
+    void loadPluginsIfNecessary();
+    void loadPlugin(const String& pluginPath);
+    
+    // Platform-specific member functions
+
+    // Returns paths to directories that should be searched for plug-ins (via pluginPathsInDirectory).
+    static Vector<String> pluginsDirectories();
+    // Returns paths to all plug-ins in the specified directory.
+    static Vector<String> pluginPathsInDirectory(const String& directory);
+    // Returns paths to individual plug-ins that won't be found via pluginsDirectories/pluginPathsInDirectory.
+    static Vector<String> individualPluginPaths();
+    static bool getPluginInfo(const String& pluginPath, Plugin& plugin);
+    bool shouldUsePlugin(const Plugin& plugin);
+    static String getMIMETypeForExtension(const String& extension);
+
+    Vector<String> m_additionalPluginsDirectories;
+    Vector<Plugin> m_plugins;
+    bool m_pluginListIsUpToDate;
+};
+    
+} // namespace WebKit
+
+#endif // PluginInfoStore_h