[Android] Use the UI thread for VSyncMonitorTest vsync requests

chrome/android/javatests_shell/src/org/chromium/chrome/browser/autofill/AutofillTest.java

Index: chrome/android/javatests_shell/src/org/chromium/chrome/browser/autofill/AutofillTest.java
diff --git a/chrome/android/javatests_shell/src/org/chromium/chrome/browser/autofill/AutofillTest.java b/chrome/android/javatests_shell/src/org/chromium/chrome/browser/autofill/AutofillTest.java
index c360ad13ca55c885c2b48dfe0c194f82989fceef..b1447bdbb4a89abd7ba8acc244a20a8c1d5edb9d 100644
--- a/chrome/android/javatests_shell/src/org/chromium/chrome/browser/autofill/AutofillTest.java
+++ b/chrome/android/javatests_shell/src/org/chromium/chrome/browser/autofill/AutofillTest.java
@@ -45,13 +45,13 @@ public class AutofillTest extends ChromeShellTestBase {
         waitForActiveShellToBeDoneLoading();
 
         mMockAutofillCallback = new MockAutofillCallback();
-        mWindowAndroid = new ActivityWindowAndroid(activity);
         final ViewAndroidDelegate viewDelegate =
                 activity.getActiveContentViewCore().getViewAndroidDelegate();
 
         ThreadUtils.runOnUiThreadBlocking(new Runnable() {
             @Override
             public void run() {
+                mWindowAndroid = new ActivityWindowAndroid(activity);
                 mAutofillPopup = new AutofillPopup(activity, viewDelegate, mMockAutofillCallback);
                 mAutofillPopup.filterAndShow(new AutofillSuggestion[0], false);
                 mAutofillPopup.setAnchorRect(50, 500, 500, 50);