Add a plain space instead of   between text nodes

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 a9b49626a290c24aa48a53e0fbb221a2a3cd4af6..77a265941801e650300376baeac32f1692b8f3e7 100644
--- a/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp
+++ b/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp
@@ -735,7 +735,8 @@ void CompositeEditCommand::rebalanceWhitespaceOnTextSubstring(Text* textNode, in
     // doesn't get all surrounding whitespace, just the whitespace in the
     // current text node.
         isStartOfParagraph(visibleUpstreamPos) || upstream == 0,
-        isEndOfParagraph(visibleDownstreamPos) || (unsigned)downstream == text.length());
+        isEndOfParagraph(visibleDownstreamPos) || (unsigned)downstream == text.length(),

[yosin_UTC9, 2016/07/25 07:42:23]

How about renaming |endIsEndOfParagraph| to |shouldEmitNBSPbeforeEnd|?
If so, we don't need to introduce |nextTextSibling| parameter.

[joone, 2016/07/26 04:16:34]

Done.

+        textNode->nextSibling() && textNode->nextSibling()->isTextNode());
 
     if (string != rebalancedString)
         replaceTextInNodePreservingMarkers(textNode, upstream, length, rebalancedString);