Added test for error. pnunn.

gfx/src/nsImageNetContextAsync.cpp

@@ -246,6 +246,7 @@ ImageConsumer::OnDataAvailable(nsIURI* aURL, nsIInputStream *pIStream, PRUint32
   PRUint32 max_read;
   PRUint32 bytes_read = 0, str_length;
   ilINetReader *reader = mURL->GetReader();
+  PRInt32 ilErr;
 
   if (mInterrupted || mStatus != 0) {
     mStatus = MK_INTERRUPTED;
@@ -298,7 +299,13 @@ ImageConsumer::OnDataAvailable(nsIURI* aURL, nsIInputStream *pIStream, PRUint32
       }
     }
 
-    reader->Write((const unsigned char *)mBuffer, (int32)nb);
+    ilErr = reader->Write((const unsigned char *)mBuffer, (int32)nb);
+	if(ilErr <= 0){
+        mStatus = MK_IMAGE_LOSSAGE;
+        mInterrupted = PR_TRUE;
+	    NS_RELEASE(reader);
+		return NS_ERROR_ABORT;
+	}
   } while(nb != 0);
 
   if ((NS_OK != err) && (NS_BASE_STREAM_EOF != err)) {
@@ -576,9 +583,9 @@ ImageNetContextImpl::GetURL (ilIURL * aURL,
   if (aURL->QueryInterface(kIURLIID, (void **)&nsurl) == NS_OK) {
     aURL->SetReader(aReader);
 
-    // Find previously created ImageConsumer if possible
   SetReloadPolicy(aLoadMethod);    
   
+    // Find previously created ImageConsumer if possible
     ImageConsumer *ic = new ImageConsumer(aURL, this);
     NS_ADDREF(ic);