[CSS Typed OM] Fix test bug errors, remove forgotten expectation files

third_party/WebKit/LayoutTests/typedcssom/cssMatrixComponent.html

Index: third_party/WebKit/LayoutTests/typedcssom/cssMatrixComponent.html
diff --git a/third_party/WebKit/LayoutTests/typedcssom/cssMatrixComponent.html b/third_party/WebKit/LayoutTests/typedcssom/cssMatrixComponent.html
index 0c7a5183374e2c6e6993b43935bcab5fa44f39dd..06692969c1c773cb5b684d7788f3c9cb9d0649c7 100644
--- a/third_party/WebKit/LayoutTests/typedcssom/cssMatrixComponent.html
+++ b/third_party/WebKit/LayoutTests/typedcssom/cssMatrixComponent.html
@@ -57,11 +57,11 @@ test(function() {
 }, "Test that the toString for CSSMatrixComponent is correct.");
 
 test(function() {
-  assert_throws(null, function() { new CSSMatrixComponent() });
-  assert_throws(null, function() { new CSSMatrixComponent(0) });
-  assert_throws(null, function() { new CSSMatrixComponent("string") });
-  assert_throws(null, function() { new CSSMatrixComponent(None) });
-  assert_throws(null, function() { new CSSMatrixComponent(undefined) });
+  assert_throws(new TypeError(), function() { new CSSMatrixComponent() });
+  assert_throws(new TypeError(), function() { new CSSMatrixComponent(0) });
+  assert_throws(new TypeError(), function() { new CSSMatrixComponent("string") });
+  assert_throws(new TypeError(), function() { new CSSMatrixComponent(null) });
+  assert_throws(new TypeError(), function() { new CSSMatrixComponent(undefined) });
 }, "Test that invalid number of arguments for CSSMatrixComponent throws an exception.");
 
 test(function() {