Fixes missing 5 pixel inset for theme background in Ash

Fixes missing 5 pixel inset for inactive tab theme background and theme background for new tab button in Ash.
The theme background is correctly inset by 5 pixels. In frame_painter.cc
Added GetThemeBackgroundXInset such that the x inset can be queried.

BUG=137090
TEST=Inactive tab theme background lines up for "Kate Spades", "Quilt", and "Wooded Chrome Theme by Everplex" with  theme background for toolbar.

In particular, "Wooded Chrome Theme By Everplex" should behave the same way it does on Mac and Windows. So, the theme should NOT line up with the NTP image.

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=150354

[pkotwicz, 2012-07-20 15:10:52]

Finally got to this.

[pkotwicz, 2012-07-26 00:44:01]

Ping!

[DaveMoore, 2012-07-27 14:24:44]

lgtm

[pkotwicz, 2012-07-27 16:24:34]

sky for OWNERS

[sky, 2012-08-02 20:41:31]

LGTM

[commit-bot: I haz the power, 2012-08-05 19:33:55]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pkotwicz@chromium.org/10816004/2001

[commit-bot: I haz the power, 2012-08-05 19:34:00]

Failed to apply patch for chrome/browser/ui/panels/panel_browser_frame_view.h:
While running patch -p1 --forward --force;
patching file chrome/browser/ui/panels/panel_browser_frame_view.h
Hunk #1 FAILED at 53.
1 out of 1 hunk FAILED -- saving rejects to file
chrome/browser/ui/panels/panel_browser_frame_view.h.rej

[commit-bot: I haz the power, 2012-08-05 19:41:05]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pkotwicz@chromium.org/10816004/20002

[commit-bot: I haz the power, 2012-08-05 20:31:49]

Try job failure for 10816004-20002 (retry) on win_rel for step "compile"
(clobber build).
It's a second try, previously, step "compile" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[commit-bot: I haz the power, 2012-08-05 20:45:00]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pkotwicz@chromium.org/10816004/10022

[commit-bot: I haz the power, 2012-08-05 21:14:18]

Try job failure for 10816004-10022 (retry) (retry) on win_rel for step "compile"
(clobber build).
It's a second try, previously, step "compile" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[commit-bot: I haz the power, 2012-08-06 00:16:23]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pkotwicz@chromium.org/10816004/18024

[commit-bot: I haz the power, 2012-08-06 00:39:31]

Try job failure for 10816004-18024 (retry) on win for step "compile" (clobber
build).
It's a second try, previously, step "compile" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win&number...

[commit-bot: I haz the power, 2012-08-06 22:04:30]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pkotwicz@chromium.org/10816004/18024

[commit-bot: I haz the power, 2012-08-06 22:49:37]

Try job failure for 10816004-18024 (retry) on linux_chromeos for step "compile"
(clobber build).
It's a second try, previously, step "compile" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_chro...

[commit-bot: I haz the power, 2012-08-07 14:30:47]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pkotwicz@chromium.org/10816004/18024

[commit-bot: I haz the power, 2012-08-07 15:52:22]

Change committed as 150354