Change LineWidth::fitsOnLine comparison logic

third_party/WebKit/Source/core/layout/line/LineWidth.h

Index: third_party/WebKit/Source/core/layout/line/LineWidth.h
diff --git a/third_party/WebKit/Source/core/layout/line/LineWidth.h b/third_party/WebKit/Source/core/layout/line/LineWidth.h
index 6f18faae32b95f220bfc9be723da3f6ec77a9adb..48f81fa9aa09ea3d4273c72b7ce3e993b5d02eaf 100644
--- a/third_party/WebKit/Source/core/layout/line/LineWidth.h
+++ b/third_party/WebKit/Source/core/layout/line/LineWidth.h
@@ -46,8 +46,15 @@ class LineWidth {
 public:
     LineWidth(LineLayoutBlockFlow, bool isFirstLine, IndentTextOrNot);
 
-    bool fitsOnLine() const { return currentWidth() <= (m_availableWidth + LayoutUnit::epsilon()); }
-    bool fitsOnLine(float extra) const { return currentWidth() + extra <= (m_availableWidth + LayoutUnit::epsilon()); }
+    bool fitsOnLine() const
+    {
+        return LayoutUnit::fromFloatFloor(currentWidth()) <= m_availableWidth;
+    }
+    bool fitsOnLine(float extra) const
+    {
+        float totalWidth = currentWidth() + extra;
+        return LayoutUnit::fromFloatFloor(totalWidth) <= m_availableWidth;
+    }
     bool fitsOnLine(float extra, WhitespaceTreatment whitespaceTreatment) const
     {
         return currentWidth() - (whitespaceTreatment == ExcludeWhitespace ? trailingWhitespaceWidth() : 0) + extra <= (m_availableWidth + LayoutUnit::epsilon());