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Cleanup implementations of QueryInterface. b=385750 r+sr=dbaron r+sr=jst

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This commit is contained in:
2007-07-03 19:15:31 -07:00
parent 0069020e27
commit 79eeaa32d0
38 changed files with 170 additions and 226 deletions
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8
layout/forms/nsHTMLButtonControlFrame.cpp
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@@ -121,12 +121,10 @@ nsrefcnt nsHTMLButtonControlFrame::Release(void)
NS_IMETHODIMP
nsHTMLButtonControlFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
NS_PRECONDITION(0 != aInstancePtr, "null ptr");
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
NS_PRECONDITION(aInstancePtr, "null out param");
if (aIID.Equals(NS_GET_IID(nsIFormControlFrame))) {
*aInstancePtr = (void*) ((nsIFormControlFrame*) this);
*aInstancePtr = NS_STATIC_CAST(nsIFormControlFrame*, this);
return NS_OK;
}