Add UseCounter feature for requestMidiAccess with sysex:true

Desktop / Chromium - timloh [chromium.org] - 18 April 2017 05:47 EDT

There are some existing counters in the permissions layer regarding how the prompts for midi sysex are resolved, a top-level counter like this makes it easier to see the usage of this feature.

Review-Url: https://codereview.chromium.org/2821233002 Cr-Commit-Position: refs/heads/master@{#465190}

c79c371 Add UseCounter feature for requestMidiAccess with sysex:true
third_party/WebKit/Source/core/frame/UseCounter.h | 2 ++
.../WebKit/Source/modules/webmidi/NavigatorWebMIDI.cpp | 11 ++++++++---
tools/metrics/histograms/histograms.xml | 2 ++
3 files changed, 12 insertions(+), 3 deletions(-)

Upstream: git.chromium.org


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