Check if the next text node has a leading white space

third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp

Index: third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp
diff --git a/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp b/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp
index af6c1ccb216cf50e0383e7f1a008ac30903ad383..c9d245114588a09065e5d4913f9fb2fff3045f9a 100644
--- a/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp
+++ b/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp
@@ -763,7 +763,7 @@ void CompositeEditCommand::rebalanceWhitespaceOnTextSubstring(Text* textNode,
   const bool nextSiblingIsTextNode =
       textNode->nextSibling() && textNode->nextSibling()->isTextNode() &&
       toText(textNode->nextSibling())->data().length() &&
-      toText(textNode->nextSibling())->data()[0] != ' ';
+      !isWhitespace(toText(textNode->nextSibling())->data()[0]);
   const bool shouldEmitNBSPbeforeEnd =
       (isEndOfParagraph(visibleDownstreamPos) ||
        (unsigned)downstream == text.length()) &&