Bug 1431774 part 3. de-COM the image loading content loadingEnabled API. r=mystor

MozReview-Commit-ID: 3JpN3ZZVNg3

dom/base/nsIImageLoadingContent.idl

@@ -59,11 +59,11 @@ interface nsIImageLoadingContent : imgINotificationObserver
   const long PENDING_REQUEST = 1;
 
   /**
-   * loadingEnabled is used to enable and disable loading in
+   * setLoadingEnabled is used to enable and disable loading in
    * situations where loading images is unwanted.  Note that enabling
    * loading will *not* automatically trigger an image load.
    */
-  [noscript] attribute boolean loadingEnabled;
+  [notxpcom, nostdcall] void setLoadingEnabled(in boolean aEnabled);
 
   /**
    * Returns the image blocking status (@see nsIContentPolicy).  This

dom/base/nsImageLoadingContent.cpp

@@ -331,20 +331,12 @@ nsImageLoadingContent::OnImageIsAnimated(imgIRequest *aRequest)
  * nsIImageLoadingContent impl
  */
 
-NS_IMETHODIMP
-nsImageLoadingContent::GetLoadingEnabled(bool *aLoadingEnabled)
-{
-  *aLoadingEnabled = mLoadingEnabled;
-  return NS_OK;
-}
-
-NS_IMETHODIMP
+void
 nsImageLoadingContent::SetLoadingEnabled(bool aLoadingEnabled)
 {
   if (nsContentUtils::GetImgLoaderForChannel(nullptr, nullptr)) {
     mLoadingEnabled = aLoadingEnabled;
   }
-  return NS_OK;
 }
 
 NS_IMETHODIMP