Index: third_party/WebKit/Source/core/layout/ng/ng_writing_mode.h |
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_writing_mode.h b/third_party/WebKit/Source/core/layout/ng/ng_writing_mode.h |
index 18b9108621b60da3e250dab6e35448a745512ee9..da32800a6e33a226219e540fd98cf36a4dea67da 100644 |
--- a/third_party/WebKit/Source/core/layout/ng/ng_writing_mode.h |
+++ b/third_party/WebKit/Source/core/layout/ng/ng_writing_mode.h |
@@ -20,6 +20,11 @@ enum NGWritingMode { |
CORE_EXPORT NGWritingMode FromPlatformWritingMode(WritingMode); |
+// Lines have horizontal orientation; modes horizontal-tb. |
+inline bool IsHorizontalWritingMode(NGWritingMode writingMode) { |
+ return writingMode == NGWritingMode::kHorizontalTopBottom; |
+} |
+ |
// Whether the child and the containing block are parallel to each other. |
// Example: vertical-rl and vertical-lr |
bool IsParallelWritingMode(NGWritingMode a, NGWritingMode b); |