Go to Chrome://Flags and enable "Pinch Scale".
Other things to enable:
-"Enable touch events"
-"Touch Optimized UI"
To fix the DPI issue, either enable "HiDPI Support" in flags or right click on Chrome Icon > Properties > Compatibility > Check "Disable displaying scaling for high DPI". Those two options provide different results so you might want to see which one you like.
Thanks for the info!
Interestingly I seemed to get the best HiDPI result by doing
both (enabling "HiDPI Support" flag
and checking Compatibility "Disable display scaling for high DPI"). In fact, enabling
only the HiDPI flag in the
latest Chrome v32/v33 seems to break things in terms of touch input mapping, whereas checking
only the Compatibility setting leaves everything too small at the default 100% zoom... Curious how these 2 HiDPI options differ, and how they interact...
Anyways, I do appreciate the experimental touch optimized UI with bigger spacing, as well as enabling pinch to zoom. But what does the "Enable touch events" change as far as running Chrome on the SP2, if I may ask?