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

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 cca3e2a23585af1f43424f06dd8eb1f23275eb2b..b68c2a37d14275d9573a1e942ff75172e76f1e96 100644
--- a/Source/core/html/HTMLTextFormControlElement.cpp
+++ b/Source/core/html/HTMLTextFormControlElement.cpp
@@ -156,24 +156,6 @@ void HTMLTextFormControlElement::updatePlaceholderVisibility(bool placeholderVal
     placeholder->setInlineStyleProperty(CSSPropertyVisibility, placeholderShouldBeVisible() ? CSSValueVisible : CSSValueHidden);
 }
 
-void HTMLTextFormControlElement::fixPlaceholderRenderer(HTMLElement* placeholder, HTMLElement* siblingElement)
-{
-    // FIXME: We should change the order of DOM nodes. But it makes an assertion
-    // failure in editing code.
-    if (!placeholder || !placeholder->renderer())
-        return;
-    RenderObject* placeholderRenderer = placeholder->renderer();
-    RenderObject* siblingRenderer = siblingElement->renderer();
-    if (!siblingRenderer)
-        return;
-    if (placeholderRenderer->nextSibling() == siblingRenderer)
-        return;
-    RenderObject* parentRenderer = placeholderRenderer->parent();
-    ASSERT(siblingRenderer->parent() == parentRenderer);
-    parentRenderer->removeChild(placeholderRenderer);
-    parentRenderer->addChild(placeholderRenderer, siblingRenderer);
-}
-
 void HTMLTextFormControlElement::setSelectionStart(int start)
 {
     setSelectionRange(start, max(start, selectionEnd()), selectionDirection());