Fix setting textContent to empty string

third_party/WebKit/Source/core/dom/Node.cpp

Index: third_party/WebKit/Source/core/dom/Node.cpp
diff --git a/third_party/WebKit/Source/core/dom/Node.cpp b/third_party/WebKit/Source/core/dom/Node.cpp
index f1292c443e9f91f47da3e401f871bbcfa14bbabd..bead55f338998ccfa9ec7835ef0ae0e273230945 100644
--- a/third_party/WebKit/Source/core/dom/Node.cpp
+++ b/third_party/WebKit/Source/core/dom/Node.cpp
@@ -1303,7 +1303,7 @@ void Node::setTextContent(const String& text) {
       // See crbug.com/352836 also.
       // No need to do anything if the text is identical.
       if (container->hasOneTextChild() &&
-          toText(container->firstChild())->data() == text)
+          toText(container->firstChild())->data() == text && !text.isEmpty())
         return;
 
       ChildListMutationScope mutation(*this);