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diff --git a/indra/newview/llpanelpulldown.h b/indra/newview/llpanelpulldown.h
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+++ b/indra/newview/llpanelpulldown.h
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+/** 
+ * @file llpanelpulldown.h
+ * @brief A panel that serves as a basis for multiple toolbar pulldown panels
+ *
+ * $LicenseInfo:firstyear=2020&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2020, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * 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
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLPANELPULLDOWN_H
+#define LL_LLPANELPULLDOWN_H
+
+#include "linden_common.h"
+
+#include "llpanel.h"
+
+class LLFrameTimer;
+
+class LLPanelPulldown : public LLPanel
+{
+public:
+    LLPanelPulldown();
+    /*virtual*/ void onMouseEnter(S32 x, S32 y, MASK mask);
+    /*virtual*/ void onMouseLeave(S32 x, S32 y, MASK mask);
+    /*virtual*/ BOOL handleMouseDown(S32 x, S32 y, MASK mask);
+    /*virtual*/ BOOL handleRightMouseDown(S32 x, S32 y, MASK mask);
+    /*virtual*/ BOOL handleDoubleClick(S32 x, S32 y, MASK mask);
+    /*virtual*/ BOOL handleScrollWheel(S32 x, S32 y, S32 clicks);
+    /*virtual*/ void onTopLost();
+    /*virtual*/ void onVisibilityChange(BOOL new_visibility);
+
+    /*virtual*/ void draw();
+
+protected:
+    LLFrameTimer mHoverTimer;
+};
+
+#endif // LL_LLPANELPULLDOWN_H