GN: Fix incremental install failing on some 64 bit devices

GN: Fix incremental install failing on some 64 bit devices

Nexus 9 complained of libraries being 32-bit instead of 64-bit without
the placeholder kicking it into 32-bit mode.

BUG=384638
Committed: https://crrev.com/8e18e37a3b8a95b2068a5f552e748981cfe97106
Cr-Commit-Position: refs/heads/master@{#353205}

[agrieve, 2015-10-08 23:53:40]

agrieve@chromium.org changed reviewers:
+ newt@chromium.org

[agrieve, 2015-10-08 23:54:19]

On 2015/10/08 23:53:40, agrieve wrote:
> mailto:agrieve@chromium.org changed reviewers:
> + mailto:newt@chromium.org

☜☞

[newt (away), 2015-10-09 00:00:10]

lgtm

https://codereview.chromium.org/1395013002/diff/1/build/android/gyp/apkbuilde...
File build/android/gyp/apkbuilder.py (right):

https://codereview.chromium.org/1395013002/diff/1/build/android/gyp/apkbuilde...
build/android/gyp/apkbuilder.py:78: apk.writestr('lib/%s/libplaceholder.so' %
options.android_abi, ':-)')
Nice :-)

[agrieve, 2015-10-09 00:14:27]

The CQ bit was checked by agrieve@chromium.org

[commit-bot: I haz the power, 2015-10-09 00:16:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1395013002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1395013002/1

[commit-bot: I haz the power, 2015-10-09 01:22:48]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-09 01:24:52]

Patchset 1 (id:??) landed as
https://crrev.com/8e18e37a3b8a95b2068a5f552e748981cfe97106
Cr-Commit-Position: refs/heads/master@{#353205}