Well by looking at its TYPICAL CHARACTERISTICS (page 10/33) I can see that its output voltages are 5V@3A / 9V@2A / 12V@1.5A, which correspond to QC 3.0 Mode A…ish. (Follow-up Question: Can it output more than this? For example 12V@3A?)
So the max current is 3A. If the 10 Ohm resistor were to dissipate all the 3Amps, it would need to be rated for R*I^2=90W. By looking at various such resistors on Mouser, i could only find such resistors which have a really big package (such as the PF2272-10RJ1), which is also really expensive. So I guess, again, by looking at the PCB Layout Guidelines that the power rating of it should only absorb the voltage spike of the output. (which, in worst case scenario, should be around 10%-ish?) so I could, theoretically, put a 10 Ohm resistor which should be able to dissipate 1W. Correct me if I am wrong, please!