Drop the 'WebURLRequest::TargetType' enum.

Drop the 'WebURLRequest::TargetType' enum.

We no longer use this enum in Chromium; everything has been ported over
to using '::RequestContext' and '::FrameType', so we can safely remove
both the enum and the translation machinery in '::setTargetType'.

BUG=390497
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=179125

[Mike West, 2014-07-23 09:39:46]

Once those other three Chromium-side patches land, this patch will compile.
WDYT, Jochen?

-mike

[jochen (gone - plz use gerrit), 2014-07-23 09:46:48]

lgtm

[Mike West, 2014-07-29 10:10:35]

The CQ bit was checked by mkwst@chromium.org

[commit-bot: I haz the power, 2014-07-29 10:11:46]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/mkwst@chromium.org/417483002/1

[commit-bot: I haz the power, 2014-07-29 11:24:21]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  mac_blink_compile_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/mac_blink_compile_dbg/bu...)

[commit-bot: I haz the power, 2014-07-29 11:42:55]

Change committed as 179125