UTF-16 Decoder: Convert unpaired surrogates to replacement characters

third_party/WebKit/LayoutTests/fast/encoding/utf-16-lone-surrogates-expected.txt

Index: third_party/WebKit/LayoutTests/fast/encoding/utf-16-lone-surrogates-expected.txt
diff --git a/third_party/WebKit/LayoutTests/fast/encoding/utf-16-lone-surrogates-expected.txt b/third_party/WebKit/LayoutTests/fast/encoding/utf-16-lone-surrogates-expected.txt
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+CONSOLE WARNING: line 4: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
+Test encoding behavior for lone UTF-16 surrogates
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS decode('utf-16', '%69%D8%D6%DE%00%00') is 'U+D869/U+DED6/U+0000'
+PASS decode('utf-16', '%D6%DE%69%D8%00%00') is 'U+FFFD/U+FFFD/U+0000'
+PASS decode('utf-16', '%69%D8%00%00') is 'U+FFFD/U+0000'
+PASS decode('utf-16', '%D6%DE%00%00') is 'U+FFFD/U+0000'
+PASS decode('utf-16be', '%D8%69%DE%D6%00%00') is 'U+D869/U+DED6/U+0000'
+PASS decode('utf-16be', '%DE%D6%D8%69%00%00') is 'U+FFFD/U+FFFD/U+0000'
+PASS decode('utf-16be', '%D8%69%00%00') is 'U+FFFD/U+0000'
+PASS decode('utf-16be', '%DE%D6%00%00') is 'U+FFFD/U+0000'
+PASS successfullyParsed is true
+
+TEST COMPLETE
+