Revert of Fix testharness result parsing, make "Harness error" count as failure.

third_party/WebKit/LayoutTests/http/tests/origin_trials/sample-api-enabled-header-expected.txt

-This is a testharness.js-based test.
-Harness Error. harness_status.status = 1 , harness_status.message = 1 duplicate test name: "Attribute should exist and return value"
-PASS Attribute should exist and return value 
-PASS Attribute should exist and return value 
-PASS Constant should exist on interface and return value 
-PASS Constant should exist on interface and not be modifiable 
-PASS Attribute should exist on partial interface and return value 
-PASS Static attribute should exist on partial interface and return value 
-PASS Constant should exist on partial interface and return value 
-PASS Method should exist on partial interface and return value 
-PASS Static method should exist on partial interface and return value 
-PASS Attribute should exist on interface and return value 
-PASS Static attribute should exist on interface and return value 
-PASS Attribute should exist and not throw exception in worker 
-PASS Attribute should exist and return value in worker 
-PASS Constant should exist and return value in worker 
-PASS Constant should exist and not be modifiable in worker 
-Harness: the test ran to completion.
-