[screen-orientation] Update implementation to match recent spec changes.

LayoutTests/screen_orientation/lockOrientation-bad-argument-expected.txt

Index: LayoutTests/screen_orientation/lockOrientation-bad-argument-expected.txt
diff --git a/LayoutTests/screen_orientation/lockOrientation-bad-argument-expected.txt b/LayoutTests/screen_orientation/lockOrientation-bad-argument-expected.txt
deleted file mode 100644
index 1ce1cb91d3e186c80077e7930b285eedfa8f066e..0000000000000000000000000000000000000000
--- a/LayoutTests/screen_orientation/lockOrientation-bad-argument-expected.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-Validates that screen.lockOrientation() returns false on bad input
-
-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-
-PASS screen.orientation is "portrait-primary"
-PASS screen.lockOrientation('invalid-orientation') threw exception TypeError: Failed to execute 'lockOrientation' on 'Screen': parameter 1 ('invalid-orientation') is not a valid enum value..
-PASS screen.orientation is "portrait-primary"
-PASS screen.lockOrientation(null) threw exception TypeError: Failed to execute 'lockOrientation' on 'Screen': parameter 1 ('null') is not a valid enum value..
-PASS screen.orientation is "portrait-primary"
-PASS screen.lockOrientation(undefined) threw exception TypeError: Failed to execute 'lockOrientation' on 'Screen': parameter 1 ('undefined') is not a valid enum value..
-PASS screen.orientation is "portrait-primary"
-PASS screen.lockOrientation(123) threw exception TypeError: Failed to execute 'lockOrientation' on 'Screen': parameter 1 ('123') is not a valid enum value..
-PASS screen.orientation is "portrait-primary"
-PASS screen.lockOrientation(window) threw exception TypeError: Failed to execute 'lockOrientation' on 'Screen': parameter 1 ('[object Window]') is not a valid enum value..
-PASS screen.orientation is "portrait-primary"
-PASS screen.lockOrientation(['portrait-primary', 'landscape-primary']) threw exception TypeError: Failed to execute 'lockOrientation' on 'Screen': parameter 1 ('portrait-primary,landscape-primary') is not a valid enum value..
-PASS screen.orientation is "portrait-primary"
-PASS screen.lockOrientation() threw exception TypeError: Failed to execute 'lockOrientation' on 'Screen': 1 argument required, but only 0 present..
-PASS screen.orientation is "portrait-primary"
-PASS successfullyParsed is true
-
-TEST COMPLETE
-