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diff --git a/Source/WebKit2/WebProcess/Plugins/PluginController.h b/Source/WebKit2/WebProcess/Plugins/PluginController.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 PluginController_h
+#define PluginController_h
+
+#include <wtf/Forward.h>
+
+struct NPObject;
+typedef struct _NPVariant NPVariant;
+
+namespace WebCore {
+    class HTTPHeaderMap;
+    class IntRect;
+    class KURL;
+}
+
+namespace WebKit {
+
+class PluginController {
+public:
+    // Tells the controller that the plug-in wants the given rect to be repainted. The rect is in the plug-in's coordinate system.
+    virtual void invalidate(const WebCore::IntRect&) = 0;
+
+    // Returns the user agent string.
+    virtual String userAgent() = 0;
+
+    // Loads the given URL and associates it with the request ID.
+    // 
+    // If a target is specified, then the URL will be loaded in the window or frame that the target refers to.
+    // Once the URL finishes loading, Plugin::frameDidFinishLoading will be called with the given requestID. If the URL
+    // fails to load, Plugin::frameDidFailToLoad will be called.
+    //
+    // If the URL is a JavaScript URL, the JavaScript code will be evaluated and the result sent back using Plugin::didEvaluateJavaScript.
+    virtual void loadURL(uint64_t requestID, const String& method, const String& urlString, const String& target, 
+                         const WebCore::HTTPHeaderMap& headerFields, const Vector<uint8_t>& httpBody, bool allowPopups) = 0;
+
+    /// Cancels the load of a stream that was requested by loadURL.
+    virtual void cancelStreamLoad(uint64_t streamID) = 0;
+
+    // Cancels the load of the manual stream.
+    virtual void cancelManualStreamLoad() = 0;
+
+    // Get the NPObject that corresponds to the window JavaScript object. Returns a retained object.
+    virtual NPObject* windowScriptNPObject() = 0;
+
+    // Get the NPObject that corresponds to the plug-in's element. Returns a retained object.
+    virtual NPObject* pluginElementNPObject() = 0;
+
+    // Evaluates the given script string in the context of the given NPObject.
+    virtual bool evaluate(NPObject*, const String& scriptString, NPVariant* result, bool allowPopups) = 0;
+
+    // Set the statusbar text.
+    virtual void setStatusbarText(const String&) = 0;
+
+#if USE(ACCELERATED_COMPOSITING)
+    // Return whether accelerated compositing is enabled.
+    virtual bool isAcceleratedCompositingEnabled() = 0;
+#endif
+
+    // Tells the controller that the plug-in process has crashed.
+    virtual void pluginProcessCrashed() = 0;
+    
+#if PLATFORM(WIN)
+    // The window to use as the parent of the plugin's window.
+    virtual HWND nativeParentWindow() = 0;
+#endif
+
+#if PLATFORM(MAC)
+    // Tells the controller that complex text input be enabled or disabled for the plug-in.
+    virtual void setComplexTextInputEnabled(bool) = 0;
+#endif
+
+    // Returns the proxies for the given URL or null on failure.
+    virtual String proxiesForURL(const String&) = 0;
+
+    // Returns the cookies for the given URL or null on failure.
+    virtual String cookiesForURL(const String&) = 0;
+
+    // Sets the cookies for the given URL.
+    virtual void setCookiesForURL(const String& urlString, const String& cookieString) = 0;
+
+    // Returns whether private browsing is enabled.
+    virtual bool isPrivateBrowsingEnabled() = 0;
+
+protected:
+    virtual ~PluginController() { }
+};
+
+} // namespace WebKit
+
+#endif // PluginController_h