Chrome pages kept zooming on my laptop....

Synaptic's Touch Gesture - Zoom

I could not figure out why Chrome pages kept zooming and shrinking.

I did happen to see that my Synaptic touchpad had an option for gestures.

Voila! http://www.synaptics.com/solutions/technology/gestures/touchpad

Pinch Zoom makes Chrome pages zoom!

The answer is to disable it if you don't use gestures on your laptop. It's not really convenient, I don't know why you would, but blame Apple. They put it on their laptops first. Well, 1 finger scroll rocks! http://www.synaptics.com/solutions/technology/gestures/touchpad/linear-scrolling. But the way I type, my opposable thumbs get in the way.

Works on Firefox 4 and IE9 too.