Make AOSP dialer resizeable in multi-window mode.

Set the appropriate flag to make AOSP dialer resizeable.

Bug: 26470449
Change-Id: I031cfe7b0df9aed94862f8e863f347c1af154aba
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 21ba20f..50ce7de 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -83,7 +83,9 @@
             android:launchMode="singleTask"
             android:clearTaskOnLaunch="true"
             android:icon="@mipmap/ic_launcher_phone"
-            android:windowSoftInputMode="stateAlwaysHidden|adjustNothing">
+            android:windowSoftInputMode="stateAlwaysHidden|adjustNothing"
+            android:resizeableActivity="true"
+            >
             <intent-filter>
                 <action android:name="android.intent.action.DIAL" />
                 <category android:name="android.intent.category.DEFAULT" />