Add cloud_print to the GN build.

Add cloud_print to the GN build.

There were some existing cloud_print targets that were hooked up only on Linux, but most of the code was Windows-only. This adds the missing targets and should bring us up to GYP parity.

Fix the cloud print size_t to int warnings and remove the warning disable from GYP.

Move generated resources file from cloud_print/resources.h to cloud_print/service/resources.h to match where the source file is.

Cloud print does some messy things to get the content switches constants, including the file directly in its sources and manually setting LINK_CONTENT_STATICALLY for all targets. In GN, this adds a static_switches target in content that does this in an official way.

Reland of https://codereview.chromium.org/1397433004/ with grid directory fixes
Reland of https://codereview.chromium.org/1393123003/ with warning fixes
TBR=dpranke

Committed: https://crrev.com/70b359a5032e58cb8309a16068868f63cba00c45
Cr-Commit-Position: refs/heads/master@{#354154}

[brettw, 2015-10-14 22:31:55]

The CQ bit was checked by brettw@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-10-14 22:32:55]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1408623002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1408623002/20001

[brettw, 2015-10-14 22:37:07]

The CQ bit was unchecked by brettw@chromium.org

[brettw, 2015-10-14 22:37:12]

The CQ bit was checked by brettw@chromium.org

[commit-bot: I haz the power, 2015-10-14 22:37:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1408623002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1408623002/20001

[Dirk Pranke, 2015-10-14 22:42:41]

dpranke@chromium.org changed reviewers:
+ dpranke@chromium.org

[Dirk Pranke, 2015-10-14 22:42:42]

lgtm

[commit-bot: I haz the power, 2015-10-14 23:43:32]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-10-14 23:45:51]

Patchset 2 (id:??) landed as
https://crrev.com/70b359a5032e58cb8309a16068868f63cba00c45
Cr-Commit-Position: refs/heads/master@{#354154}

[Nico, 2015-10-15 23:24:27]

thakis@chromium.org changed reviewers:
+ thakis@chromium.org

[Nico, 2015-10-15 23:24:28]

https://codereview.chromium.org/1408623002/diff/20001/cloud_print/virtual_dri...
File cloud_print/virtual_driver/win/port_monitor/BUILD.gn (right):

https://codereview.chromium.org/1408623002/diff/20001/cloud_print/virtual_dri...
cloud_print/virtual_driver/win/port_monitor/BUILD.gn:17: print("port_monitor
$current_toolchain")
whoops! (i'll send you a cl)

[Dirk Pranke, 2015-10-16 01:31:19]

lgtm (apart from Nico's catch, of course ;).