There's something weird to investigate here. My default size is quite wide (approx 770x430 pixels), and I can't make it smaller.

Harmony has a spec for "standard" dialog sizes (like, one of three standard widths -- I need to hunt down the slide) - we should pick one of those.

I think this is a fixed or wontfix. The dialog isn't resizable on other platforms, and it conflicts with the fixed-width deal in Harmony. Nobody's _complained_ about this dialog being resizable on Mac, and it's not broken, so I suppose it can stay resizable.

The dialog sets a preferred client view size of 70 "characters" wide and 25 "lines" tall. For me (after adding the non-client view: buttons/titles/etc) this is 477x400 pixels (it would have been more, but elly fixed that in r469336), which BubbleFrameView now rounds up to 512 pixels.

The minimum width of the dialog comes from the buttons and padding. For me this is 336 pixels (depends on the button labels, which depends on language). That's more than 320, so it would be rounded up to 448px, even if we picked something smaller than 70 characters wide.

There's no rounding for the dialog height, so in most cases this should end up wider since this bug was filed. i.e. less narrow.

One possible improvement would be to allow the dialog to be user-resized to be smaller than its default width. That's easy to do (the dialog delegate just needs to return a result for GetMinimumSize() as well as the preferred size). But it would involve admitting that this dialog is resizable on mac when it probably shouldn't be..

We could also say "we don't want 25 lines on Mac, but 20", but with the new widths I think this is fine.