Fix some busted bits

- Import find to use it
- Use new dom property to query dom

client/lib/feed-post-store/normalization-rules.js

@@ -52,17 +52,17 @@ const fastPostNormalizationRules = [
 		classifyPost
 	];
 
-function discoverFullBleedImages( post, callback ) {
+function discoverFullBleedImages( post, dom ) {
 	if ( post.site_ID === DISCOVER_BLOG_ID ) {
-		const images = toArray( post.__contentDOM.querySelectorAll( '.fullbleed img, img.fullbleed' ) );
+		const images = dom.querySelectorAll( '.fullbleed img, img.fullbleed' );
 		forEach( images, function( image ) {
 			const newSrc = resizeImageUrl( image.src, { w: DISCOVER_FULL_BLEED_WIDTH } );
 			let oldImageObject = find( post.content_images, { src: image.src } );
 			oldImageObject.src = newSrc;
 			image.src = newSrc;
 		} );
 	}
-	callback();
+	return post;
 }
 
 /**

client/lib/post-normalizer/rule-wait-for-images-to-load.js

@@ -2,6 +2,7 @@
  * External Dependencies
  */
 import filter from 'lodash/filter';
+import find from 'lodash/find';
 import flow from 'lodash/flow';
 import forEach from 'lodash/forEach';
 import map from 'lodash/map';