[layoutng] Correctly resolve indefinite percentages

third_party/WebKit/Source/core/layout/ng/ng_length_utils_test.cc

Index: third_party/WebKit/Source/core/layout/ng/ng_length_utils_test.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_length_utils_test.cc b/third_party/WebKit/Source/core/layout/ng/ng_length_utils_test.cc
index 93ea4e504dcdbcc954206d042dd9b3d8c221dcf1..0cabc047730fed6cc9e40ed68b36a53b7f1e9156 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_length_utils_test.cc
+++ b/third_party/WebKit/Source/core/layout/ng/ng_length_utils_test.cc
@@ -159,6 +159,21 @@ TEST_F(NGLengthUtilsTest, testComputeBlockSizeForFragment) {
   // TODO(layout-ng): test {min,max}-content on max-height.
 }
 
+TEST_F(NGLengthUtilsTest, testIndefinitePercentages) {
+  style_->setMinHeight(Length(20, Fixed));
+  style_->setHeight(Length(20, Percent));
+
+  EXPECT_EQ(LayoutUnit(-1),
+            computeBlockSizeForFragment(constructConstraintSpace(200, -1),
+                                        LayoutUnit(-1)));
+  EXPECT_EQ(LayoutUnit(20),
+            computeBlockSizeForFragment(constructConstraintSpace(200, -1),
+                                        LayoutUnit(10)));
+  EXPECT_EQ(LayoutUnit(120),
+            computeBlockSizeForFragment(constructConstraintSpace(200, -1),
+                                        LayoutUnit(120)));
+}
+
 TEST_F(NGLengthUtilsTest, testMargins) {
   style_->setMarginTop(Length(10, Percent));
   style_->setMarginRight(Length(52, Fixed));