Fix AutofillAddress crash

AutofillAddress crashes when the AddressProfile is null. This CL adds
a null-check to avoid it.

Bug: 1227048
Change-Id: I128522cb85c11633f468f4e48bdc2d3f3b3d0480
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3010583
Reviewed-by: Nick Burris <nburris@chromium.org>
Reviewed-by: Liquan (Max) Gu <maxlg@chromium.org>
Reviewed-by: Roger McFarlane <rogerm@chromium.org>
Commit-Queue: Liquan (Max) Gu <maxlg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#900583}

chrome/android/java/src/org/chromium/chrome/browser/autofill/settings/AutofillProfilesFragment.java

@@ -172,10 +172,13 @@ public class AutofillProfilesFragment extends PreferenceFragmentCompat
             String guid = ((AutofillProfileEditorPreference) preference).getGUID();
             EditorDialog editorDialog = prepareEditorDialog(guid);
             mLastEditorDialogForTest = editorDialog;
-            AutofillAddress autofillAddress = guid == null
+            AutofillAddress autofillAddress = null;
-                    ? null
+            if (guid != null) {
-                    : new AutofillAddress(
+                AutofillProfile profile = PersonalDataManager.getInstance().getProfile(guid);
-                            getActivity(), PersonalDataManager.getInstance().getProfile(guid));
+                if (profile != null) {
+                    autofillAddress = new AutofillAddress(getActivity(), profile);
+                }
+            }
             editAddress(editorDialog, autofillAddress);
             return;
         }