Fixed uncaught divide by zero case in client controller view update fps calculation.
Fixed uncaught divide by zero case in client controller view update fps calculation.

cboulay/PSMoveService,zelmon64/PSMoveService,cboulay/PSMoveService,cboulay/PSMoveService,gb2111/PSMoveService,zelmon64/PSMoveService,zelmon64/PSMoveService,zelmon64/PSMoveService,zelmon64/PSMoveService,gb2111/PSMoveService,gb2111/PSMoveService,gb2111/PSMoveService,cboulay/PSMoveService,cboulay/PSMoveService,gb2111/PSMoveService