Reapply the patch r191685 with fixing the regression issue.

Source/core/html/HTMLTextFormControlElement.cpp

Index: Source/core/html/HTMLTextFormControlElement.cpp
diff --git a/Source/core/html/HTMLTextFormControlElement.cpp b/Source/core/html/HTMLTextFormControlElement.cpp
index 8e65cb613615538ec2cdd66fab503c67efed4ffb..80157c196801b7286dc9885908f8c226123b047c 100644
--- a/Source/core/html/HTMLTextFormControlElement.cpp
+++ b/Source/core/html/HTMLTextFormControlElement.cpp
@@ -1006,4 +1006,11 @@ Position HTMLTextFormControlElement::endOfSentence(const Position& position)
     return endOfInnerText(textFormControl);
 }
 
+void HTMLTextFormControlElement::copyNonAttributePropertiesFromElement(const Element& source)
+{
+    const HTMLTextFormControlElement& sourceElement = static_cast<const HTMLTextFormControlElement&>(source);
+    m_lastChangeWasUserEdit = sourceElement.m_lastChangeWasUserEdit;
+    HTMLFormControlElement::copyNonAttributePropertiesFromElement(source);
+}
+
 } // namespace blink