Index: third_party/WebKit/Source/platform/scroll/Scrollbar.h |
diff --git a/third_party/WebKit/Source/platform/scroll/Scrollbar.h b/third_party/WebKit/Source/platform/scroll/Scrollbar.h |
index 2eb8b1e1b64edc4ad85ee2044a0b368b98cfef6a..0c49f9e008fe4d0e4d3c3b593ceea8195b66cd1b 100644 |
--- a/third_party/WebKit/Source/platform/scroll/Scrollbar.h |
+++ b/third_party/WebKit/Source/platform/scroll/Scrollbar.h |
@@ -110,6 +110,7 @@ class PLATFORM_EXPORT Scrollbar : public Widget, |
// This returns device-scale-factor-aware pixel value. |
// e.g. 15 in dsf=1.0, 30 in dsf=2.0. |
+ // This returns 0 for overlay scrollbars. |
// See also ScrolbarTheme::scrollbatThickness(). |
int scrollbarThickness() const; |