Add missing commas in lists of strings

Bug: 1114873
Change-Id: Iae5bf16707ac1176ffdd5503d9c8a573495523b0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2357756Reviewed-by: Emil A Eklund <eae@chromium.org>
Commit-Queue: Arthur Eubanks <aeubanks@google.com>
Cr-Commit-Position: refs/heads/master@{#799320}

third_party/blink/renderer/core/layout/collapsed_border_value_test.cc

@@ -104,7 +104,7 @@ TEST_F(CollapsedBorderValueTest, Compare) {
       "solid white thin cell",
       "solid transparent thin cell",
       "medium transparent",
-      "solid black thick table"
+      "solid black thick table",
       "solid black thick cell",
       "border style hidden",
   };

third_party/blink/renderer/platform/weborigin/kurl_test.cc

@@ -786,7 +786,7 @@ TEST(KURLTest, IsHierarchical) {
       "http://host/path/to/file.txt",
       "ftp://andrew.cmu.edu/foo",
       "file:///path/to/resource",
-      "file://hostname/etc/"
+      "file://hostname/etc/",
       "filesystem:http://www.google.com/type/",
       "filesystem:http://user:pass@google.com:21/blah#baz",
   };