Fix Bug 952260, do not show switch tree if only one tree
Fix Bug 952260, do not show switch tree if only one tree

jay-z007/dxr,srenatus/dxr,KiemVM/Mozilla--dxr,jay-z007/dxr,bozzmob/dxr,pombredanne/dxr,KiemVM/Mozilla--dxr,pelmers/dxr,bozzmob/dxr,jay-z007/dxr,pelmers/dxr,srenatus/dxr,KiemVM/Mozilla--dxr,srenatus/dxr,nrc/dxr,jbradberry/dxr,kleintom/dxr,gartung/dxr,pelmers/dxr,pombredanne/dxr,nrc/dxr,pombredanne/dxr,bozzmob/dxr,KiemVM/Mozilla--dxr,bozzmob/dxr,nrc/dxr,jbradberry/dxr,jay-z007/dxr,kleintom/dxr,pombredanne/dxr,kleintom/dxr,jay-z007/dxr,gartung/dxr,kleintom/dxr,jbradberry/dxr,erikrose/dxr,nrc/dxr,jay-z007/dxr,jbradberry/dxr,pombredanne/dxr,pombredanne/dxr,kleintom/dxr,KiemVM/Mozilla--dxr,bozzmob/dxr,pelmers/dxr,bozzmob/dxr,gartung/dxr,nrc/dxr,gartung/dxr,nrc/dxr,erikrose/dxr,srenatus/dxr,srenatus/dxr,gartung/dxr,bozzmob/dxr,jbradberry/dxr,KiemVM/Mozilla--dxr,pombredanne/dxr,jay-z007/dxr,pelmers/dxr,srenatus/dxr,jbradberry/dxr,erikrose/dxr,kleintom/dxr,gartung/dxr,kleintom/dxr,erikrose/dxr,gartung/dxr,pelmers/dxr,pelmers/dxr,erikrose/dxr,jbradberry/dxr