Reland: Build Mojo apps in sub-dirs, like application packages.

Reland: Build Mojo apps in sub-dirs, like application packages.

Reland https://codereview.chromium.org/1189703004/
Also fix ShellTestBase for mojo_runner_unittests, etc.
Share and copy asset caching code used by ShellMain.java.

Original description (still correct):
Build Mojo apps in subdirectories, like application packages.

Build all <foo>.mojo targets in a <foo> sub-directory.
Support resources bundled in mojo_native_application.
Remove mojo_application_package (now redundant).
Update hard-coded paths and simplify URL resolution code.

Remove apps bundled in core_services from Mandoline.apk
(network service, surfaces service, view manager)

This would help NetworkFetcher resolve app locations.
(Android apptests host the build dir on a local server)
(but apptests should instead bundle apps in an apk)

BUG=498020
TEST=Mojo runner and Mandoline still work (as much as they currently do :-/)
R=scottmg@chromium.org,sky@chromium.org

Committed: https://crrev.com/0900ab2febde6e1a273bc7c187ba32d21b85bd84
Cr-Commit-Position: refs/heads/master@{#334547}

[msw, 2015-06-16 00:18:09]

Patchset #1 (id:1) has been deleted

[msw, 2015-06-16 01:12:07]

msw@chromium.org changed reviewers:
+ scottmg@chromium.org, sky@chromium.org

[msw, 2015-06-16 01:12:15]

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

[msw, 2015-06-16 01:12:34]

Hey Scotts, please take a look; thanks!

[commit-bot: I haz the power, 2015-06-16 01:13:34]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1189703004/60001

[scottmg, 2015-06-16 01:49:15]

lgtm

[sky, 2015-06-16 02:44:25]

LGTM

[commit-bot: I haz the power, 2015-06-16 02:51:37]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-06-16 02:51:38]

Dry run: This issue passed the CQ dry run.

[msw, 2015-06-16 03:05:16]

The CQ bit was checked by msw@chromium.org

[commit-bot: I haz the power, 2015-06-16 03:05:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1189703004/60001

[commit-bot: I haz the power, 2015-06-16 03:09:40]

Committed patchset #3 (id:60001)

[commit-bot: I haz the power, 2015-06-16 03:10:23]

Patchset 3 (id:??) landed as
https://crrev.com/0900ab2febde6e1a273bc7c187ba32d21b85bd84
Cr-Commit-Position: refs/heads/master@{#334547}

[jam, 2015-06-16 15:44:49]

This broke Mandoline on Windows, since ICU is looking for the .dat file in the
subdirectories and they're not there.

[msw, 2015-06-16 16:05:43]

On 2015/06/16 15:44:49, jam wrote:
> This broke Mandoline on Windows, since ICU is looking for the .dat file in the
> subdirectories and they're not there.

Shoot, you can revert if you want, I'll look when I get in.