Convert BubblePositionerTest to deviceless testing

This change introduces Robolectric to WMShell and converts BubblePositionerTest
to a bivalent test.

Flag: NONE
Bug: 308004028
Test: atest BubblePositionerTest
Change-Id: I0aa7ccd99d20fadc86429615f249124eb3f4f51b
diff --git a/libs/WindowManager/Shell/multivalentTests/AndroidTest.xml b/libs/WindowManager/Shell/multivalentTests/AndroidTest.xml
new file mode 100644
index 0000000..36fe8ec
--- /dev/null
+++ b/libs/WindowManager/Shell/multivalentTests/AndroidTest.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2023 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<configuration description="Runs Tests for WindowManagerShellLib">
+    <target_preparer class="com.android.tradefed.targetprep.suite.SuiteApkInstaller">
+        <option name="cleanup-apks" value="true" />
+        <option name="install-arg" value="-t" />
+        <option name="test-file-name" value="WMShellMultivalentTestsOnDevice.apk" />
+    </target_preparer>
+
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="framework-base-presubmit" />
+    <option name="test-tag" value="WMShellMultivalentTestsOnDevice" />
+    <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
+        <option name="package" value="com.android.wm.shell.multivalenttests" />
+        <option name="runner" value="androidx.test.runner.AndroidJUnitRunner" />
+        <option name="hidden-api-checks" value="false"/>
+    </test>
+</configuration>