Adapt html-media-capture tests to latest spec

[Honry]

• Fix issue Update test suite w3c/html-media-capture#7

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[wpt-pr-bot]

Notifying @haoxli and @zqzhang. (Learn how reviewing works.)

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Firefox (nightly channel)

Testing web-platform-tests at revision cc8bef3
Using browser at version BuildID 20170331102157; SourceStamp 8df9fabf2587b7020889755acb9e75b664fe13cf
Starting 10 test iterations
All results were stable

All results

2 tests ran

/html-media-capture/capture_reflect.html

Subtest	Results	Messages
	OK
Element input should have own property capture	FAIL	assert_true: expected true got false
input.capture is "" when the capture attribute is absent	FAIL	assert_equals: expected (string) "" but got (undefined) undefined
input.capture is "" when the capture attribute is missing value default	FAIL	assert_equals: expected (string) "" but got (undefined) undefined
input.capture is "user" when the capture attribute is user	FAIL	assert_equals: expected (string) "user" but got (undefined) undefined
input.capture is "invalid" when the capture attribute is invalid value default	FAIL	assert_equals: expected (string) "invalid" but got (undefined) undefined
input.capture is "environment" when the capture attribute is environment	FAIL	assert_equals: expected (string) "environment" but got (undefined) undefined

/html-media-capture/idlharness.html

Subtest	Results	Messages
	OK
HTMLInputElement interface: attribute capture	FAIL	assert_true: The prototype object must have a property "capture" expected true got false
HTMLInputElement must be primary interface of [object HTMLInputElement]	PASS
Stringification of [object HTMLInputElement]	PASS
HTMLInputElement interface: [object HTMLInputElement] must inherit property "capture" with the proper type (0)	FAIL	assert_inherits: property "capture" not found in prototype chain

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Chrome (unstable channel)

Testing web-platform-tests at revision cc8bef3
Using browser at version 59.0.3053.3 dev
Starting 10 test iterations
All results were stable

All results

2 tests ran

/html-media-capture/capture_reflect.html

Subtest	Results	Messages
	OK
Element input should have own property capture	FAIL	assert_true: expected true got false
input.capture is "" when the capture attribute is absent	FAIL	assert_equals: expected (string) "" but got (undefined) undefined
input.capture is "" when the capture attribute is missing value default	FAIL	assert_equals: expected (string) "" but got (undefined) undefined
input.capture is "user" when the capture attribute is user	FAIL	assert_equals: expected (string) "user" but got (undefined) undefined
input.capture is "invalid" when the capture attribute is invalid value default	FAIL	assert_equals: expected (string) "invalid" but got (undefined) undefined
input.capture is "environment" when the capture attribute is environment	FAIL	assert_equals: expected (string) "environment" but got (undefined) undefined

/html-media-capture/idlharness.html

Subtest	Results	Messages
	OK
HTMLInputElement interface: attribute capture	FAIL	assert_true: The prototype object must have a property "capture" expected true got false
HTMLInputElement must be primary interface of [object HTMLInputElement]	PASS
Stringification of [object HTMLInputElement]	PASS
HTMLInputElement interface: [object HTMLInputElement] must inherit property "capture" with the proper type (0)	FAIL	assert_inherits: property "capture" not found in prototype chain

[Honry]

@dontcallmedom, could you help merge this PR?