Revert of Make WebKitCSSMatrix an alias of DOMMatrix

android_webview/tools/system_webview_shell/test/data/webexposed/global-interface-listing-expected.txt

Index: android_webview/tools/system_webview_shell/test/data/webexposed/global-interface-listing-expected.txt
diff --git a/android_webview/tools/system_webview_shell/test/data/webexposed/global-interface-listing-expected.txt b/android_webview/tools/system_webview_shell/test/data/webexposed/global-interface-listing-expected.txt
index f29be242022a9c98bdb30b843deb98a9ff194da1..dcee1c83c0fa8604d7c022f0bee05f6fc9560267 100644
--- a/android_webview/tools/system_webview_shell/test/data/webexposed/global-interface-listing-expected.txt
+++ b/android_webview/tools/system_webview_shell/test/data/webexposed/global-interface-listing-expected.txt
@@ -5166,8 +5166,7 @@ interface WebKitAnimationEvent : Event
     getter animationName
     getter elapsedTime
     method constructor
-interface WebKitCSSMatrix : DOMMatrixReadOnly
-    attribute @@toStringTag
+interface WebKitCSSMatrix
     getter a
     getter b
     getter c
@@ -5191,18 +5190,16 @@ interface WebKitCSSMatrix : DOMMatrixReadOnly
     getter m43
     getter m44
     method constructor
-    method invertSelf
-    method multiplySelf
-    method preMultiplySelf
-    method rotateAxisAngleSelf
-    method rotateFromVectorSelf
-    method rotateSelf
-    method scale3dSelf
-    method scaleSelf
+    method inverse
+    method multiply
+    method rotate
+    method rotateAxisAngle
+    method scale
     method setMatrixValue
-    method skewXSelf
-    method skewYSelf
-    method translateSelf
+    method skewX
+    method skewY
+    method toString
+    method translate
     setter a
     setter b
     setter c