Bug 1933627 [wpt PR 49388] - Update wpt metadata, a=testonly

wpt-pr: 49388
wpt-type: metadata

Author: moz-wptsync-bot

testing/web-platform/meta/css/css-backgrounds/background-332.html.ini

@@ -0,0 +1,3 @@
+[background-332.html]
+  [background_specified_size]
+    expected: FAIL

testing/web-platform/meta/css/css-backgrounds/background-size-001.html.ini

@@ -1,3 +1,29 @@
 [background-size-001.html]
   expected:
     if (os == "android") and fission: [OK, TIMEOUT]
+  [background-size_length_zero]
+    expected: FAIL
+
+  [background-size_length_negative_zero]
+    expected: FAIL
+
+  [background-size_length_positive_zero]
+    expected: FAIL
+
+  [background-size_length_normal]
+    expected: FAIL
+
+  [background-size_percentage_min]
+    expected: FAIL
+
+  [background-size_percentage_normal]
+    expected: FAIL
+
+  [background-size_percentage_max]
+    expected: FAIL
+
+  [background-size_length_auto]
+    expected: FAIL
+
+  [background-size_percentage_auto]
+    expected: FAIL