Ensure line-break is on correct object if trailing collapsed whitespace pushes us over line-end

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

Index: third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h
diff --git a/third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h b/third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h
index 580cea082ce674de0c964ca12a39741b67cc09a6..9a184446e5a2441af22202ec213b0ad80d62ca2a 100644
--- a/third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h
+++ b/third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h
@@ -1501,6 +1501,12 @@ inline void BreakingContext::commitAndUpdateLineBreakIfNeeded() {
         m_currentStyle->collapseWhiteSpace())
       m_trailingObjects.clear();
 
+    if (!m_width.fitsOnLine() && m_width.fitsOnLine(0, ExcludeWhitespace) &&
+        m_ignoringSpaces && m_nextObject) {
+      m_width.commit();
+      m_lineBreak.moveToStartOf(m_nextObject);
+    }
+
     if (m_width.committedWidth()) {
       m_atEnd = true;
       return;