Upstream shapedetection tests to WPT

Moved shapedetection tests under
third_party/blink/web_tests/shapedetection/,
third_party/blink/web_tests/fast/shapedetection/,
third_party/blink/web_tests/http/tests/shapedetection/,
to third_party/blink/web_tests/external/wpt/shape-detection/, excludes
the Text detection part as which is still a sister informative
specification of Shape Detection.

Copyed third_party/blink/web_tests/shapedetection/resources/big-buffer-helpers.js
to wpt/shape-detection/resources/shapedetection-helpers.js and extended it by
adding a wrapper promise test, detection_test.

Moved third_party/blink/web_tests/shapedetection/resources/mock-barcodedetection.js
and third_party/blink/web_tests/shapedetection/resources/mock-facedetection.js
to wpt/resources/chromium/

Used the testharness from wpt/ and rewrited tests to remove use of
generate_tests as which is discouraged in wpt.

Rewrite detection-on-worker.html as detection-on-worker.worker.js by using
wpt preferred worker test framework.

Rename detection-support.html as detection-getSupportedFormats.html as *-support.html
is treated as support file rather than test file in wpt.

No new tests have been added.

BUG=932382

Change-Id: I321e7b9f986f407b83325bb4c6bdc366c9769264
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1510754
Commit-Queue: Wanming Lin <wanming.lin@intel.com>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#641504}
39 files changed