Document CDB dependency in Windows build for external contributors.

Document CDB dependency in Windows build for external contributors.

The Windows 10 SDK installed by Visual Studio 2015 Community Edition
does not include Debugging Tools for Windows. The build process requires
CDB. According to the MSDN page on Debugging Tools, they are also
bundled with the Windows Driver Kit, which is freely available. So, we
can point our external contributors to the WDK to get CDB.

BUG=639212
Committed: https://crrev.com/43b43ba9d4873b8ab11d1848ceb5ebd9befcf1c8
Cr-Commit-Position: refs/heads/master@{#413506}

[pwnall, 2016-08-19 07:39:09]

pwnall@chromium.org changed reviewers:
+ brettw@chromium.org

[pwnall, 2016-08-19 07:39:09]

Can you please take a look at this doc fix?

[brettw, 2016-08-22 17:52:56]

lgtm

[pwnall, 2016-08-22 18:31:17]

The CQ bit was checked by pwnall@chromium.org

[commit-bot: I haz the power, 2016-08-22 18:33:38]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-08-22 19:29:45]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-22 19:32:58]

Description was changed from

==========
Document CDB dependency in Windows build for external contributors.

The Windows 10 SDK installed by Visual Studio 2015 Community Edition
does not include Debugging Tools for Windows. The build process requires
CDB. According to the MSDN page on Debugging Tools, they are also
bundled with the Windows Driver Kit, which is freely available. So, we
can point our external contributors to the WDK to get CDB.

BUG=639212
==========

to

==========
Document CDB dependency in Windows build for external contributors.

The Windows 10 SDK installed by Visual Studio 2015 Community Edition
does not include Debugging Tools for Windows. The build process requires
CDB. According to the MSDN page on Debugging Tools, they are also
bundled with the Windows Driver Kit, which is freely available. So, we
can point our external contributors to the WDK to get CDB.

BUG=639212

Committed: https://crrev.com/43b43ba9d4873b8ab11d1848ceb5ebd9befcf1c8
Cr-Commit-Position: refs/heads/master@{#413506}
==========

[commit-bot: I haz the power, 2016-08-22 19:32:59]

Patchset 1 (id:??) landed as
https://crrev.com/43b43ba9d4873b8ab11d1848ceb5ebd9befcf1c8
Cr-Commit-Position: refs/heads/master@{#413506}