Fix DialerFilterTest

The key events were being lost, because the the widget didn't start
with focus like it did in previous releases. This is due to the action
bar now taking focus and is working as intended.

Change-Id: I9200dde28494a881b0f83d1a7c6e638b9e703552
diff --git a/tests/tests/widget/src/android/widget/cts/DialerFilterTest.java b/tests/tests/widget/src/android/widget/cts/DialerFilterTest.java
index 0b436b2..8d8e4c28 100644
--- a/tests/tests/widget/src/android/widget/cts/DialerFilterTest.java
+++ b/tests/tests/widget/src/android/widget/cts/DialerFilterTest.java
@@ -113,10 +113,13 @@
         mInstrumentation.runOnMainSync(new Runnable() {
             public void run() {
                 mDialerFilter.setMode(DialerFilter.DIGITS_ONLY);
+                mDialerFilter.requestFocus();
             }
         });
         mInstrumentation.waitForIdleSync();
 
+        assertTrue(mDialerFilter.hasFocus());
+
         mInstrumentation.sendStringSync("123");
         assertEquals("", mDialerFilter.getLetters().toString());
         assertEquals("123", mDialerFilter.getDigits().toString());