Putting my changes back in since it made no difference in the orange-ish nature of certain linux tinderboxes. (pchen said it was ok, so there.)

layout/html/base/src/nsHTMLImageLoader.cpp

@@ -145,6 +145,16 @@ nsHTMLImageLoader::Update(nsIPresContext* aPresContext,
          aStatus, mImageLoader, mCallBack,
          mFlags.mSquelchCallback ? "yes" : "no");
 #endif
+
+  if (!mFlags.mNeedSizeNotification &&
+      NS_IMAGE_LOAD_STATUS_SIZE_AVAILABLE & aStatus) {
+    // remove the size available bit since it is not needed
+    aStatus &= ~NS_IMAGE_LOAD_STATUS_SIZE_AVAILABLE;
+    // check if any status left
+    if (aStatus == NS_IMAGE_LOAD_STATUS_NONE)
+      return;
+  }
+
   if (NS_IMAGE_LOAD_STATUS_SIZE_AVAILABLE & aStatus) {
     if (mImageLoader) {
       mImageLoader->GetSize(mIntrinsicImageSize);
@@ -152,10 +162,6 @@ nsHTMLImageLoader::Update(nsIPresContext* aPresContext,
         mFlags.mHaveIntrinsicImageSize = PR_TRUE;
       }
     }
-    if ((NS_IMAGE_LOAD_STATUS_SIZE_AVAILABLE == aStatus) &&
-        !mFlags.mNeedSizeNotification) {
-      return;
-    }
   }
 
   // Pass on update to the user of this object if they want it