The path to Wire.h in Arduino 1.53 is:
arduino-1.5.3\hardware\arduino\x86\libraries\Wire\Wire.h. Wire.cpp lives there too.
To fix it include Wire.h in your sketch: #include <Wire.h>
Bonus fix: You don't define pos for your for statements. Make two changes like: for(int pos=0;pos<180;pos +=1),
or define int pos somewhere else.