Update WebUI for HiDPI images added in r143476

Update WebUI for HiDPI images added in r143476

BUG=132910
TEST=Top left icon on about:crashes, about:plugins and folder
icon on about:bookmarks (on mac) look sharp.
TBR=jhawkins

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=143588

[flackr, 2012-06-22 07:21:57]

LGTM

[commit-bot: I haz the power, 2012-06-22 13:25:43]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/thakis@chromium.org/10638011/1

[commit-bot: I haz the power, 2012-06-22 13:25:46]

Presubmit check for 10638011-1 failed and returned exit status 1.

Running presubmit commit checks ...

** Presubmit Warnings **
Found lines longer than 80 characters (first 5 shown).
  chrome/browser/resources/bookmark_manager/css/bmm.css, line 185, 86 chars \
  chrome/browser/resources/bookmark_manager/css/bmm.css, line 186, 87 chars \
  chrome/browser/resources/chromeos/wrench_menu.css, line 10, 81 chars

** Presubmit ERRORS **
Missing LGTM from an OWNER for files in these directories:
    chrome/browser/resources
    chrome/browser/resources/chromeos

Presubmit checks took 1.0s to calculate.

[Nico, 2012-06-22 13:46:12]

jhawkins: OWNERS

[commit-bot: I haz the power, 2012-06-22 13:46:19]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/thakis@chromium.org/10638011/1

[commit-bot: I haz the power, 2012-06-22 13:46:21]

Presubmit check for 10638011-1 failed and returned exit status 1.

Running presubmit commit checks ...

** Presubmit Messages **
--tbr was specified, skipping OWNERS check

** Presubmit Warnings **
Found lines longer than 80 characters (first 5 shown).
  chrome/browser/resources/bookmark_manager/css/bmm.css, line 185, 86 chars \
  chrome/browser/resources/bookmark_manager/css/bmm.css, line 186, 87 chars \
  chrome/browser/resources/chromeos/wrench_menu.css, line 10, 81 chars

[James Hawkins, 2012-06-22 17:28:53]

LGTM

https://chromiumcodereview.appspot.com/10638011/diff/1/chrome/browser/resourc...
File chrome/browser/resources/bookmark_manager/css/bmm.css (right):

https://chromiumcodereview.appspot.com/10638011/diff/1/chrome/browser/resourc...
chrome/browser/resources/bookmark_manager/css/bmm.css:185:
url('../../../../app/theme/default_100_percent/bookmark_bar_folder_mac.png') 1x,
Ugh, re: ../../../../