tree e2680f453ccd65b98a39425d443f3443ef2b736f
parent f3cbe88832406f0a92a5b600b83d153948ceaa39
author Peter Qiu <zqiu@chromium.org> 1398892357 -0700
committer chrome-internal-fetch <chrome-internal-fetch@google.com> 1399581721 +0000

UMA metric reporting for WIFI TX bitrate.

Added UMA metric for WIFI TX bitrate, which is reported every
minute when wifi is connected.

BUG=chromium:368761
TEST=unit tests, manual
Manual Test:
1. Connect a chrome device to a wireless AP
2. Browse to "chrome://histograms", and verify there is a histogram
   for "Network.Shill.WiFi.TXBitrate"

Conflicts:
	metrics.cc
	metrics.h
	metrics_unittest.cc
	mock_metrics.h

Change-Id: Ib4280f2df89269f30fb988904b97d35c16569218
Reviewed-on: https://chromium-review.googlesource.com/197731
Reviewed-by: Peter Qiu <zqiu@chromium.org>
Commit-Queue: Peter Qiu <zqiu@chromium.org>
Tested-by: Peter Qiu <zqiu@chromium.org>