url: Build it as a static library.

url: Build it as a static library.

This is temporary just to avoid weird link issues in Windows XP.

- Update the gyp file.
- Rename the gyp file from googleurl.gyp to url.gyp, so it matches the directory
name.
- Update the header include paths.
- Update the header include guards.
- Rename the target name from googleurl to url and googleurl_unittests to
url_unittests.
- Remove GURL_API (this will be replaced by URL_EXPORT when we componentize it again).
- Remove url_common.h (will be replaced by url_export.h when we componentize it again).

BUG=229660
TEST=url_unittests
R=brettw@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=195005

[tfarina, 2013-04-17 00:27:20]

Hi Brett, could you review this to me again? Sorry for all the breakages!

Jochen, Dale, Michael, Nico, please feel free to look over this and give me your
feedback (if you are interested, otherwise just uncopy yourself ;)).

Thanks!

[brettw, 2013-04-17 03:06:07]

lgtm

[tfarina, 2013-04-18 21:21:17]

Committed patchset #1 manually as r195005 (presubmit successful).