[Android] Refactor browser test execution. (RELAND)

[Android] Refactor browser test execution. (RELAND)

This is a reland of https://codereview.chromium.org/1165523002/

BUG=472360
TBR=jochen@chromium.org

Committed: https://crrev.com/590a3d7811a63f4be729cbbfb3ad2a0b1e2a5078
Cr-Commit-Position: refs/heads/master@{#334285}

[jbudorick, 2015-06-12 14:49:01]

jbudorick@chromium.org changed reviewers:
+ cjhopman@chromium.org, jaekyun@chromium.org, jochen@chromium.org,
tedchoc@chromium.org

[jbudorick, 2015-06-12 14:49:02]

The original (patch 1) broke cronet_sample_test_apk in release builds because
some of the Log methods used in TestStatusReceiver were proguarded out of
cronet_sample_apk, making them unavailable to cront_sample_test_apk. This got
through the trybots because the trybots don't build the cronet targets
(https://code.google.com/p/chromium/issues/detail?id=481526).

The revised patch addresses this by adding @VisibleForTesting to some of the Log
methods.

[Ted C, 2015-06-12 18:19:19]

lgtm

[cjhopman, 2015-06-12 18:19:35]

lgtm

[jbudorick, 2015-06-12 19:23:32]

jbudorick@chromium.org changed reviewers:
+ nyquist@chromium.org

[jbudorick, 2015-06-12 19:23:33]

+nyquist for base

[nyquist, 2015-06-12 22:36:53]

base lgtm

[jbudorick, 2015-06-12 22:59:40]

The CQ bit was checked by jbudorick@chromium.org

[jbudorick, 2015-06-12 22:59:41]

TBR'ing jochen for components/test/DEPS, as the change to that is the same as it
was in the previous review.

[commit-bot: I haz the power, 2015-06-12 23:02:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1173363008/20001

[commit-bot: I haz the power, 2015-06-12 23:53:39]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-06-12 23:54:37]

Patchset 2 (id:??) landed as
https://crrev.com/590a3d7811a63f4be729cbbfb3ad2a0b1e2a5078
Cr-Commit-Position: refs/heads/master@{#334285}