Replace HTMLTextFormControlElement::fixPlaceholderRenderer with an override of RenderTextControl::a…

Source/core/html/HTMLTextAreaElement.cpp

Index: Source/core/html/HTMLTextAreaElement.cpp
diff --git a/Source/core/html/HTMLTextAreaElement.cpp b/Source/core/html/HTMLTextAreaElement.cpp
index 03dd058004c659b8d34719330bf2d35c4a0b1346..128bc3f19c305bc741a1bd5315567c53b8ae0bc7 100644
--- a/Source/core/html/HTMLTextAreaElement.cpp
+++ b/Source/core/html/HTMLTextAreaElement.cpp
@@ -512,12 +512,6 @@ HTMLElement* HTMLTextAreaElement::placeholderElement() const
     return m_placeholder;
 }
 
-void HTMLTextAreaElement::attach(const AttachContext& context)
-{
-    HTMLTextFormControlElement::attach(context);
-    fixPlaceholderRenderer(m_placeholder, innerTextElement());
-}
-
 bool HTMLTextAreaElement::matchesReadOnlyPseudoClass() const
 {
     return isReadOnly();
@@ -544,8 +538,7 @@ void HTMLTextAreaElement::updatePlaceholderText()
         m_placeholder->setPart(AtomicString("-webkit-input-placeholder", AtomicString::ConstructFromLiteral));
         userAgentShadowRoot()->insertBefore(m_placeholder, innerTextElement()->nextSibling(), ASSERT_NO_EXCEPTION);
     }
-    m_placeholder->setInnerText(placeholderText, ASSERT_NO_EXCEPTION);
-    fixPlaceholderRenderer(m_placeholder, innerTextElement());
+    m_placeholder->setTextContent(placeholderText, ASSERT_NO_EXCEPTION);
 }
 
 }