Check resource bitmap before calling onResourceReady

ui/android/java/src/org/chromium/ui/resources/ResourceManager.java

Index: ui/android/java/src/org/chromium/ui/resources/ResourceManager.java
diff --git a/ui/android/java/src/org/chromium/ui/resources/ResourceManager.java b/ui/android/java/src/org/chromium/ui/resources/ResourceManager.java
index c3eb05caba446590836e4aabc63daca653e4b098..5b77c074519954533d710e522e869858e6484230 100644
--- a/ui/android/java/src/org/chromium/ui/resources/ResourceManager.java
+++ b/ui/android/java/src/org/chromium/ui/resources/ResourceManager.java
@@ -139,7 +139,7 @@ public class ResourceManager implements ResourceLoaderCallback {
     @SuppressWarnings("cast")
     @Override
     public void onResourceLoaded(int resType, int resId, Resource resource) {
-        if (resource == null) return;
+        if (resource == null || resource.getBitmap() == null) return;
 
         if (resType != AndroidResourceType.CRUSHED_SPRITE) {
             saveMetadataForLoadedResource(resType, resId, resource);