Bug 208111 - Remove nsIDocument::GetArena which is unused. r=sicking sr=peterv

git-svn-id: svn://10.0.0.236/trunk@143286 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/content/base/public/nsIDocument.h

@@ -45,7 +45,6 @@
 #include "nsCOMArray.h"
 
 class nsIAtom;
-class nsIArena;
 class nsIContent;
 class nsIDocumentObserver;
 class nsIPresContext;
@@ -103,11 +102,6 @@ class nsIDocument : public nsISupports {
 public:
   NS_DEFINE_STATIC_IID_ACCESSOR(NS_IDOCUMENT_IID)
 
-  // All documents have a memory arena associated with them which is
-  // used for memory allocation during document creation. This call
-  // returns the arena associated with this document.
-  NS_IMETHOD GetArena(nsIArena** aArena) = 0;
-
   NS_IMETHOD StartDocumentLoad(const char* aCommand,
                                nsIChannel* aChannel,
                                nsILoadGroup* aLoadGroup,

mozilla/content/base/src/nsDocument.cpp

@@ -44,7 +44,6 @@
 #include "nsIInterfaceRequestor.h"
 #include "nsIInterfaceRequestorUtils.h"
 #include "nsDocument.h"
-#include "nsIArena.h"
 #include "nsUnicharUtils.h"
 #include "nsIPrivateDOMEvent.h"
 #include "nsIEventStateManager.h"
@@ -638,28 +637,14 @@ NS_IMPL_RELEASE(nsDocument)
 nsresult
 nsDocument::Init()
 {
-  if (mArena) {
+  if (mNodeInfoManager) {
     return NS_ERROR_ALREADY_INITIALIZED;
   }
 
-  nsresult rv = NS_NewHeapArena(getter_AddRefs(mArena), nsnull);
-  NS_ENSURE_SUCCESS(rv, rv);
-
   mNodeInfoManager = new nsNodeInfoManager();
   NS_ENSURE_TRUE(mNodeInfoManager, NS_ERROR_OUT_OF_MEMORY);
 
-  mNodeInfoManager->Init(this);
-
-  return rv;
-}
-
-NS_IMETHODIMP
-nsDocument::GetArena(nsIArena** aArena)
-{
-  *aArena = mArena;
-  NS_IF_ADDREF(*aArena);
-
-  return NS_OK;
+  return mNodeInfoManager->Init(this);
 }
 
 NS_IMETHODIMP

mozilla/content/base/src/nsDocument.h

@@ -44,7 +44,6 @@
 #include "nsIDocument.h"
 #include "nsWeakReference.h"
 #include "nsWeakPtr.h"
-#include "nsIArena.h"
 #include "nsVoidArray.h"
 #include "nsIDOMXMLDocument.h"
 #include "nsIDOMDocumentView.h"
@@ -243,8 +242,6 @@ public:
 
   NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
 
-  NS_IMETHOD GetArena(nsIArena** aArena);
-
   NS_IMETHOD Reset(nsIChannel* aChannel, nsILoadGroup* aLoadGroup);
   NS_IMETHOD ResetToURI(nsIURI *aURI, nsILoadGroup *aLoadGroup);
 
@@ -598,7 +595,6 @@ protected:
   nsDocument();
   virtual ~nsDocument();
 
-  nsCOMPtr<nsIArena> mArena;
   nsString mDocumentTitle;
   nsCString mLastModified;
   nsCOMPtr<nsIURI> mDocumentURL;