Remove PPB_Scrollbar_Dev and PPB_Widget_Dev from native client

Remove PPB_Scrollbar_Dev and PPB_Widget_Dev from native client

Native client was supporting PPB_Widget_Dev (and related PPB_Scrollbar_Dev) to
support PDF Viewer. As PDF Viewer runs in-process now, this CL removes support
for these interfaces from native_client.

This should also let https://chromiumcodereview.appspot.com/10824386/ land
without breaking nacl_integration tests

BUG=140833
TEST=None


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=152834

[Josh Horwich, 2012-08-21 22:57:51]

Bill,
  Please take a look.
  After discussions with brettw and ncbray I removed support in native client
for PPB_PDF and associated widget/scrollbar interfaces, as PDF Viewer isn't run
under NaCl anymore.
  Background here is that I was adding a new method to ppb_widget_dev - when I
changed the interface from 0_3 to 0_4 it unexpectedly caused nacl_integration to
break despite trybot / CQ success, so we reverted
http://codereview.chromium.org/10824386/ until I sort out the native_client
side.
  I ran chrome_browser_tests locally under native_client as well as the try runs
to help avoid nacl_integration breakage

[bbudge, 2012-08-21 23:43:52]

LGTM

[commit-bot: I haz the power, 2012-08-22 15:54:20]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jhorwich@chromium.org/10827456/6001

[commit-bot: I haz the power, 2012-08-22 17:22:19]

Try job failure for 10827456-6001 (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, 2012-08-22 19:20:27]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jhorwich@chromium.org/10827456/6001

[commit-bot: I haz the power, 2012-08-22 21:56:21]

Change committed as 152834