Completes the move of Android metrics file to "metrics".

Completes the move of Android metrics file to "metrics".

Follows:
https://codereview.chromium.org/968943004/
https://chrome-internal-review.googlesource.com/#/c/203597/
BUG=428903
TBR=jbudorick

Committed: https://crrev.com/47b26ee4d278b6c65e18955799ebcc09f0c07af6
Cr-Commit-Position: refs/heads/master@{#318891}

[Yaron, 2015-03-02 15:19:37]

yfriedman@chromium.org changed reviewers:
+ asvitkine@chromium.org

[Alexei Svitkine (slow), 2015-03-02 16:27:35]

lgtm

[Yaron, 2015-03-03 15:06:54]

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

[Yaron, 2015-03-03 15:06:54]

tbr jbudorick for findbugs removal

[Yaron, 2015-03-03 15:07:26]

The CQ bit was checked by yfriedman@chromium.org

[Yaron, 2015-03-03 15:07:27]

The patchset sent to the CQ was uploaded after l-g-t-m from
asvitkine@chromium.org
Link to the patchset: https://codereview.chromium.org/964363003/#ps20001 (title:
" ")

[commit-bot: I haz the power, 2015-03-03 15:08:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/964363003/20001

[jbudorick, 2015-03-03 15:48:38]

lgtm

[commit-bot: I haz the power, 2015-03-03 16:36:10]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-03 16:37:37]

Patchset 2 (id:??) landed as
https://crrev.com/47b26ee4d278b6c65e18955799ebcc09f0c07af6
Cr-Commit-Position: refs/heads/master@{#318891}