Remove an extra space added before iframe

third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp

Index: third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp
diff --git a/third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp b/third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp
index c636b95df1b0f1364138f051ef8b7373683d0cbc..d3bdd9489f60cf86bd39125b4778424c5369c3fc 100644
--- a/third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp
+++ b/third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp
@@ -710,7 +710,7 @@ bool TextIteratorAlgorithm<Strategy>::handleReplacedElement()
                 return false;
             }
         }
-    } else if (m_lastTextNodeEndedWithCollapsedSpace) {
+    } else if (m_lastTextNodeEndedWithCollapsedSpace && !isHTMLIFrameElement(toHTMLElement(*m_node))) {
         spliceBuffer(spaceCharacter, Strategy::parent(*m_lastTextNode), m_lastTextNode, 1, 1);
         return false;
     }