Don't clear image cache, if URL focus is lost before native is initialized.

Bug: 969093, 968951
Change-Id: Ibc88bcc667d8035c49f58c3c0cd0f98651595acb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1637669Reviewed-by: Matthew Jones <mdjones@chromium.org>
Reviewed-by: Theresa <twellington@chromium.org>
Commit-Queue: Ender <ender@google.com>
Cr-Commit-Position: refs/heads/master@{#665643}

chrome/android/java/src/org/chromium/chrome/browser/omnibox/suggestions/entity/EntitySuggestionProcessor.java

@@ -75,7 +75,7 @@ public class EntitySuggestionProcessor implements SuggestionProcessor {
 
     @Override
     public void onUrlFocusChange(boolean hasFocus) {
-        if (!hasFocus) mImageFetcher.clear();
+        if (mImageFetcher != null && !hasFocus) mImageFetcher.clear();
     }
 
     private void fetchEntityImage(OmniboxSuggestion suggestion, PropertyModel model) {