Bug 302445. Don't hold a strong reference to the device context from nsBlender --- this prevents leaking the device context in some cases where frames leak. r+sr=dbaron,a=bsmedberg

gfx/src/nsBlender.cpp

@@ -45,7 +45,6 @@
  */
 nsBlender :: nsBlender()
 {
-  mContext = nsnull;
 }
 
 /** ---------------------------------------------------
@@ -98,8 +97,6 @@ NS_IMPL_ISUPPORTS1(nsBlender, nsIBlender)
 NS_IMETHODIMP
 nsBlender::Init(nsIDeviceContext *aContext)
 {
-  mContext = aContext;
-  
   return NS_OK;
 }
 

gfx/src/nsBlender.h

@@ -140,8 +140,6 @@ protected:
   void Do16Blend(float aOpacity, PRInt32 aNumLines, PRInt32 aNumBytes,
                  PRUint8 *aSImage, PRUint8 *aDImage, PRUint8 *aSecondSImage,
                  PRInt32 aSLSpan, PRInt32 aDLSpan, nsBlendQuality aBlendQuality);
-
-  nsCOMPtr<nsIDeviceContext> mContext;
 };
 
 #endif /* !nsBlender_h___ */