Drop [LegacyInterfaceTypeChecking] where trivial in core/

third_party/WebKit/LayoutTests/fast/files/workers/worker-read-file-sync-expected.txt

Index: third_party/WebKit/LayoutTests/fast/files/workers/worker-read-file-sync-expected.txt
diff --git a/third_party/WebKit/LayoutTests/fast/files/workers/worker-read-file-sync-expected.txt b/third_party/WebKit/LayoutTests/fast/files/workers/worker-read-file-sync-expected.txt
index 74e9ffdc327610bfd0fdee8cd2c494120f85da1a..883733609a46247a3d329a755a20b0fe58518ad6 100644
--- a/third_party/WebKit/LayoutTests/fast/files/workers/worker-read-file-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/files/workers/worker-read-file-sync-expected.txt
@@ -2,80 +2,80 @@
 Received files in worker
 Test reading a non-existent file as array buffer
 Received exception, name: NotFoundError, message: Failed to execute 'readAsArrayBuffer' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
-Received exception, name: NotFoundError, message: Failed to execute 'readAsArrayBuffer' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsArrayBuffer' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a non-existent file as binary string
 Received exception, name: NotFoundError, message: Failed to execute 'readAsBinaryString' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
-Received exception, name: NotFoundError, message: Failed to execute 'readAsBinaryString' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsBinaryString' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a non-existent file as text
 Received exception, name: NotFoundError, message: Failed to execute 'readAsText' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
-Received exception, name: NotFoundError, message: Failed to execute 'readAsText' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsText' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a non-existent file as data URL
 Received exception, name: NotFoundError, message: Failed to execute 'readAsDataURL' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
-Received exception, name: NotFoundError, message: Failed to execute 'readAsDataURL' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsDataURL' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading an empty file as array buffer
 result size: 0
 result: 
-Received exception, name: NotFoundError, message: Failed to execute 'readAsArrayBuffer' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsArrayBuffer' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading an empty file as binary string
 result size: 0
 result: 
-Received exception, name: NotFoundError, message: Failed to execute 'readAsBinaryString' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsBinaryString' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading an empty file as text
 result size: 0
 result: 
-Received exception, name: NotFoundError, message: Failed to execute 'readAsText' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsText' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading an empty file as data URL
 result size: 5
 result: data:
-Received exception, name: NotFoundError, message: Failed to execute 'readAsDataURL' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsDataURL' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a UTF-8 file as array buffer
 result size: 5
 result: Hello
-Received exception, name: NotFoundError, message: Failed to execute 'readAsArrayBuffer' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsArrayBuffer' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a UTF-8 file as binary string
 result size: 5
 result: Hello
-Received exception, name: NotFoundError, message: Failed to execute 'readAsBinaryString' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsBinaryString' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a binary file as array buffer
 result size: 9
 result: 0x0 0x1 0x2 0x80 0x81 0x82 0xfd 0xfe 0xff
-Received exception, name: NotFoundError, message: Failed to execute 'readAsArrayBuffer' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsArrayBuffer' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a binary file as binary string
 result size: 9
 result: 0x0 0x1 0x2 0x80 0x81 0x82 0xfd 0xfe 0xff
-Received exception, name: NotFoundError, message: Failed to execute 'readAsBinaryString' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsBinaryString' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a UTF-8 file as text
 result size: 5
 result: Hello
-Received exception, name: NotFoundError, message: Failed to execute 'readAsText' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsText' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a UTF-16BE BOM file as text
 result size: 5
 result: Hello
-Received exception, name: NotFoundError, message: Failed to execute 'readAsText' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsText' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a UTF-16LE BOM file as text
 result size: 5
 result: Hello
-Received exception, name: NotFoundError, message: Failed to execute 'readAsText' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsText' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a UTF-8 BOM file as text
 result size: 5
 result: Hello
-Received exception, name: NotFoundError, message: Failed to execute 'readAsText' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsText' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a UTF-16BE file as text with UTF-16BE encoding
 result size: 5
 result: Hello
-Received exception, name: NotFoundError, message: Failed to execute 'readAsText' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsText' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a UTF-16BE BOM file as text with UTF8 encoding
 result size: 5
 result: Hello
-Received exception, name: NotFoundError, message: Failed to execute 'readAsText' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsText' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a UTF-16BE BOM file as text with invalid encoding
 result size: 5
 result: Hello
-Received exception, name: NotFoundError, message: Failed to execute 'readAsText' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsText' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test reading a UTF-8 file as data URL
 result size: 31
 result: data:text/plain;base64,SGVsbG8=
-Received exception, name: NotFoundError, message: Failed to execute 'readAsDataURL' on 'FileReaderSync': A requested file or directory could not be found at the time an operation was processed.
+Received exception, name: TypeError, message: Failed to execute 'readAsDataURL' on 'FileReaderSync': parameter 1 is not of type 'Blob'.
 Test calling multiple read methods in a row
 result size: 5
 result: Hello