Cleanup a bunch of TODO(shess).

Cleanup a bunch of TODO(shess).

The TODO on AutocompleteEditViewMac about the popup needing the field
for placement and font got half done.  The placement part just seemed
too intrusive to be worthwhile, but the font part seemed reasonable to
get rid of.

The others are all either not sensible anymore, or were addressed
without being removed, or have been in there long enough that if
nobody has complained by now, their subject must not matter.

BUG=none
TEST=none

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=47732

[Scott Hess - ex-Googler, 2010-05-19 20:23:40]

Due to your TODO in location_bar_view_mac.mm...

[Nico, 2010-05-19 20:34:52]

LG

http://codereview.chromium.org/2127009/diff/1/8
File chrome/browser/cocoa/location_bar_view_mac.mm (left):

http://codereview.chromium.org/2127009/diff/1/8#oldcode157
chrome/browser/cocoa/location_bar_view_mac.mm:157: // PageTransition::TYPED.
:-)