Update layout in CompositeEditCommand::moveParagraphs for TextIterator::rangeLength

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 cccd76bdb4c065c70d8a1c58622a1df747e35f1e..2fbed19343f414d28a0291b4e908133f4e3e9581 100644
--- a/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp
+++ b/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp
@@ -1629,10 +1629,11 @@ void CompositeEditCommand::moveParagraphs(
                  beforeParagraph.deepEquivalent(), editingState);
     if (editingState->isAborted())
       return;
-    // Need an updateLayout here in case inserting the br has split a text node.
-    document().updateStyleAndLayoutIgnorePendingStylesheets();
   }
 
+  // TextIterator::rangeLength requires clean layout.
+  document().updateStyleAndLayoutIgnorePendingStylesheets();
+
   destinationIndex = TextIterator::rangeLength(
       Position::firstPositionInNode(document().documentElement()),
       destination.toParentAnchoredPosition(), true);