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diff --git a/indra/newview/llchicletbar.h b/indra/newview/llchicletbar.h
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+/** 
+* @file llchicletbar.h
+* @brief LLChicletBar class header file
+*
+* $LicenseInfo:firstyear=2011&license=viewerlgpl$
+* Second Life Viewer Source Code
+* Copyright (C) 2011, 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_LLCHICLETBAR_H
+#define LL_LLCHICLETBAR_H
+
+#include "llpanel.h"
+#include "llimview.h"
+
+class LLChicletPanel;
+class LLIMChiclet;
+class LLLayoutPanel;
+class LLLayoutStack;
+
+class LLChicletBar
+	: public LLSingleton<LLChicletBar>
+	, public LLPanel
+	, public LLIMSessionObserver
+{
+	LOG_CLASS(LLChicletBar);
+	friend class LLSingleton<LLChicletBar>;
+public:
+	~LLChicletBar();
+
+	BOOL postBuild();
+
+	LLChicletPanel*	getChicletPanel() { return mChicletPanel; }
+
+	// LLIMSessionObserver observe triggers
+	virtual void sessionAdded(const LLUUID& session_id, const std::string& name, const LLUUID& other_participant_id);
+	virtual void sessionRemoved(const LLUUID& session_id);
+	void sessionIDUpdated(const LLUUID& old_session_id, const LLUUID& new_session_id);
+
+	S32 getTotalUnreadIMCount();
+
+	/*virtual*/ void reshape(S32 width, S32 height, BOOL called_from_parent);
+
+	/**
+	 * Creates IM Chiclet based on session type (IM chat or Group chat)
+	 */
+	LLIMChiclet* createIMChiclet(const LLUUID& session_id);
+
+	/**
+	 * Shows/hides panel with specified well button (IM or Notification)
+	 *
+	 * @param well_name - name of the well panel to be processed.
+	 * @param visible - a flag specifying whether a button should be shown or hidden.
+	 */
+	void showWellButton(const std::string& well_name, bool visible);
+
+private:
+	/**
+	 * Updates child controls size and visibility when it is necessary to reduce total width.
+	 *
+	 * @param delta_width - value by which chiclet bar should be shrunk. It is a negative value.
+	 * @returns positive value which chiclet bar can not process when it reaches its minimal width.
+	 *		Zero if there was enough space to process delta_width.
+	 */
+	S32 processWidthDecreased(S32 delta_width);
+
+	/** helper function to log debug messages */
+	void log(LLView* panel, const std::string& descr);
+
+	/**
+	 * @return difference between current chiclet panel width and the minimum.
+	 */
+	S32 getChicletPanelShrinkHeadroom() const;
+
+protected:
+	LLChicletBar(const LLSD& key = LLSD());
+
+	LLChicletPanel* 	mChicletPanel;
+	LLLayoutStack*		mToolbarStack;
+};
+
+#endif // LL_LLCHICLETBAR_H