Check for null loadUrlParams

Bug: 897670
Change-Id: Ib5f7892332b8f6129fd9e5822aef096574856dd3
Reviewed-on: https://chromium-review.googlesource.com/c/1294834Reviewed-by: Theresa <twellington@chromium.org>
Commit-Queue: Jian Li <jianli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#601751}

chrome/android/java/src/org/chromium/chrome/browser/suggestions/SuggestionsNavigationDelegate.java

@@ -104,6 +104,7 @@ public class SuggestionsNavigationDelegate extends NativePageNavigationDelegateI
             OfflinePageUtils.getLoadUrlParamsForOpeningOfflineVersion(article.mUrl,
                     article.getOfflinePageOfflineId(), LaunchLocation.SUGGESTION,
                     (loadUrlParams) -> {
+                        if (loadUrlParams == null) return;
                         // Extra headers are not read in loadUrl, but verbatim headers are.
                         loadUrlParams.setVerbatimHeaders(loadUrlParams.getExtraHeadersString());
                         openDownloadSuggestion(windowOpenDisposition, article, loadUrlParams);