Fix Android Contacts Picker.

The show() invocation got lost in the shuffle of
crrev.com/6d9b12cf

Bug: 1125450
Change-Id: Ia0203fc3586b4b0b787e5f9b162b25e45fbef29e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2398885Reviewed-by: Ted Choc <tedchoc@chromium.org>
Commit-Queue: Evan Stade <estade@chromium.org>
Cr-Commit-Position: refs/heads/master@{#804978}

chrome/android/java/src/org/chromium/chrome/browser/init/ProcessInitializationHandler.java

@@ -254,6 +254,7 @@ public class ProcessInitializationHandler {
                                     includeTel, includeAddresses, includeIcons, formattedOrigin);
                     dialog.getWindow().getAttributes().windowAnimations =
                             R.style.PickerDialogAnimation;
+                    dialog.show();
                     return dialog;
                 });