Index: src/wp-admin/includes/class-wp-press-this.php
===================================================================
--- src/wp-admin/includes/class-wp-press-this.php	(revision 32828)
+++ src/wp-admin/includes/class-wp-press-this.php	(working copy)
@@ -80,9 +80,10 @@
 				}
 
 				// Sideload image, which gives us a new image src.
-				$new_src = media_sideload_image( $image_src, $post_id, null, 'src' );
+				$new_src_id = media_handle_sideload( $image_src, $post_id, null );
 
-				if ( ! is_wp_error( $new_src ) ) {
+				if ( ! is_wp_error( $new_src_id ) ) {
+					$new_src = wp_get_attachment_url( $new_src_id );
 					// Replace the POSTED content <img> with correct uploaded ones.
 					// Need to do it in two steps so we don't replace links to the original image if any.
 					$new_image = str_replace( $image_src, $new_src, $image );
Index: src/wp-admin/includes/deprecated.php
===================================================================
--- src/wp-admin/includes/deprecated.php	(revision 32828)
+++ src/wp-admin/includes/deprecated.php	(working copy)
@@ -1183,3 +1183,59 @@
 function _relocate_children( $old_ID, $new_ID ) {
 	_deprecated_function( __FUNCTION__, '3.9' );
 }
+
+/**
+ * Downloads an image from the specified URL and attaches it to a post.
+ *
+ * @since 2.6.0
+ * @since 4.2.0 Introduced the `$return` parameter.
+ * @deprecated X.X.X
+ *
+ * @param string $file    The URL of the image to download.
+ * @param int    $post_id The post ID the media is to be associated with.
+ * @param string $desc    Optional. Description of the image.
+ * @param string $return  Optional. Accepts 'html' (image tag html) or 'src' (URL). Default 'html'.
+ * @return string|WP_Error Populated HTML img tag on success, WP_Error object otherwise.
+ */
+function media_sideload_image( $file, $post_id, $desc = null, $return = 'html' ) {
+	_deprecated_function( __FUNCTION__, 'X.X.X' );
+	if ( ! empty( $file ) ) {
+
+		// Set variables for storage, fix file filename for query strings.
+		preg_match( '/[^\?]+\.(jpe?g|jpe|gif|png)\b/i', $file, $matches );
+		$file_array = array();
+		$file_array['name'] = basename( $matches[0] );
+
+		// Download file to temp location.
+		$file_array['tmp_name'] = download_url( $file );
+
+		// If error storing temporarily, return the error.
+		if ( is_wp_error( $file_array['tmp_name'] ) ) {
+			return $file_array['tmp_name'];
+		}
+
+		// Do the validation and storage stuff.
+		$id = media_handle_sideload( $file_array, $post_id, $desc );
+
+		// If error storing permanently, unlink.
+		if ( is_wp_error( $id ) ) {
+			@unlink( $file_array['tmp_name'] );
+			return $id;
+		}
+
+		$src = wp_get_attachment_url( $id );
+	}
+
+	// Finally, check to make sure the file has been saved, then return the HTML.
+	if ( ! empty( $src ) ) {
+		if ( $return === 'src' ) {
+			return $src;
+		}
+
+		$alt = isset( $desc ) ? esc_attr( $desc ) : '';
+		$html = "<img src='$src' alt='$alt' />";
+		return $html;
+	} else {
+		return new WP_Error( 'image_sideload_failed' );
+	}
+}
\ No newline at end of file
Index: src/wp-admin/includes/media.php
===================================================================
--- src/wp-admin/includes/media.php	(revision 32828)
+++ src/wp-admin/includes/media.php	(working copy)
@@ -827,60 +827,6 @@
 }
 
 /**
- * Downloads an image from the specified URL and attaches it to a post.
- *
- * @since 2.6.0
- * @since 4.2.0 Introduced the `$return` parameter.
- *
- * @param string $file    The URL of the image to download.
- * @param int    $post_id The post ID the media is to be associated with.
- * @param string $desc    Optional. Description of the image.
- * @param string $return  Optional. Accepts 'html' (image tag html) or 'src' (URL). Default 'html'.
- * @return string|WP_Error Populated HTML img tag on success, WP_Error object otherwise.
- */
-function media_sideload_image( $file, $post_id, $desc = null, $return = 'html' ) {
-	if ( ! empty( $file ) ) {
-
-		// Set variables for storage, fix file filename for query strings.
-		preg_match( '/[^\?]+\.(jpe?g|jpe|gif|png)\b/i', $file, $matches );
-		$file_array = array();
-		$file_array['name'] = basename( $matches[0] );
-
-		// Download file to temp location.
-		$file_array['tmp_name'] = download_url( $file );
-
-		// If error storing temporarily, return the error.
-		if ( is_wp_error( $file_array['tmp_name'] ) ) {
-			return $file_array['tmp_name'];
-		}
-
-		// Do the validation and storage stuff.
-		$id = media_handle_sideload( $file_array, $post_id, $desc );
-
-		// If error storing permanently, unlink.
-		if ( is_wp_error( $id ) ) {
-			@unlink( $file_array['tmp_name'] );
-			return $id;
-		}
-
-		$src = wp_get_attachment_url( $id );
-	}
-
-	// Finally, check to make sure the file has been saved, then return the HTML.
-	if ( ! empty( $src ) ) {
-		if ( $return === 'src' ) {
-			return $src;
-		}
-
-		$alt = isset( $desc ) ? esc_attr( $desc ) : '';
-		$html = "<img src='$src' alt='$alt' />";
-		return $html;
-	} else {
-		return new WP_Error( 'image_sideload_failed' );
-	}
-}
-
-/**
  * {@internal Missing Short Description}}
  *
  * @since 2.5.0