Bug 1501109 Part 2: Update test expectations for flex line growth state. r=dholbert

Depends on D9454

Differential Revision: https://phabricator.services.mozilla.com/D9455

--HG--
extra : moz-landing-system : lando

dom/flex/test/chrome/test_flex_lines.html

@@ -97,21 +97,21 @@ function runTests() {
     [{ crossStart: 0,
        crossSize: 42,
        itemCount: 2,
-       growthState: "unchanged" }],
+       growthState: "growing" }],
     [{ crossStart: 0,
        crossSize: 42,
        itemCount: 3,
-       growthState: "unchanged" }],
+       growthState: "growing" }],
 
     // items don't fill container, no grow, shrink, or min-width, with wrap and align-content:center -->
     [{ crossStart: 13.5,
        crossSize: 15,
        itemCount: 2,
-       growthState: "unchanged" }],
+       growthState: "growing" }],
     [{ crossStart: 13.5,
        crossSize: 15,
        itemCount: 3,
-       growthState: "unchanged" }],
+       growthState: "growing" }],
 
     // items don't fill container, with grow
     [{ crossStart: 0,
@@ -157,11 +157,11 @@ function runTests() {
     [{ crossStart: 0,
        crossSize: 21,
        itemCount: 2,
-       growthState: "unchanged" },
+       growthState: "growing" },
      { crossStart: 21,
        crossSize: 21,
        itemCount: 1,
-       growthState: "unchanged" }],
+       growthState: "growing" }],
     [{ crossStart: 0,
        crossSize: 42,
        itemCount: 4,
@@ -169,11 +169,11 @@ function runTests() {
     [{ crossStart: 0,
        crossSize: 21,
        itemCount: 2,
-       growthState: "unchanged" },
+       growthState: "growing" },
      { crossStart: 21,
        crossSize: 21,
        itemCount: 2,
-       growthState: "unchanged" }],
+       growthState: "growing" }],
 
     // items overfill container, with wrap and different types of align-content
     [{ crossStart: 0,