Change requiresLineBox to return false for empty-text inline.

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 62ceade42a907e4930d366840be62c3e9f2c5da1..ab0f1baaae981cee6baffa0cf8a143ce2ce54388 100644
--- a/third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h
+++ b/third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h
@@ -206,6 +206,10 @@ inline bool alwaysRequiresLineBox(LineLayoutItem flow)
 
 inline bool requiresLineBox(const InlineIterator& it, const LineInfo& lineInfo = LineInfo(), WhitespacePosition whitespacePosition = LeadingWhitespace)
 {
+    if (it.getLineLayoutItem().isEmptyText()) {

[eae, 2016/08/02 20:52:04]

NIT: No curly brackets around one-line control-flow statements (see the
conditions below).

[Gleb Lanbin, 2016/08/02 23:17:55]

Done.

+        return false;
+    }
+
     if (it.getLineLayoutItem().isFloatingOrOutOfFlowPositioned())
         return false;