DEV-44357: Close classified/pick details when closing Pick panel.

When we close the Pick panel, we now also close any specific
classified or pick that was opened from the pick panel.

indra/newview/llpanelpicks.cpp

@@ -485,6 +485,18 @@ void LLPanelPicks::onOpen(const LLSD& key)
 	LLPanelProfileTab::onOpen(key);
 }
 
+void LLPanelPicks::onClosePanel()
+{
+	if (mPanelClassifiedInfo)
+	{
+		onPanelClassifiedClose(mPanelClassifiedInfo);
+	}
+	if (mPanelPickInfo)
+	{
+		onPanelPickClose(mPanelPickInfo);
+	}
+}
+
 void LLPanelPicks::onListCommit(const LLFlatListView* f_list)
 {
 	// Make sure only one of the lists has selection.

indra/newview/llpanelpicks.h

@@ -74,6 +74,8 @@ class LLPanelPicks
 
 	/*virtual*/ void onOpen(const LLSD& key);
 
+	/*virtual*/ void onClosePanel();
+
 	void processProperties(void* data, EAvatarProcessorType type);
 
 	void updateData();