Renamed WmServiceUtils.java to TestSystemServices.java

In preperation for having the class correctly mock all services
for test.

Test: Existing tests pass.
Change-Id: Ifecc9cf59139c04741ddd041fd7918b66970bfc1
diff --git a/services/tests/wmtests/src/com/android/server/wm/AppTransitionTests.java b/services/tests/wmtests/src/com/android/server/wm/AppTransitionTests.java
index 0c6e632..123de2d 100644
--- a/services/tests/wmtests/src/com/android/server/wm/AppTransitionTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/AppTransitionTests.java
@@ -60,7 +60,7 @@
 
     @BeforeClass
     public static void setUpRootWindowContainerMock() {
-        final WindowManagerService wm = WmServiceUtils.getWindowManagerService();
+        final WindowManagerService wm = TestSystemServices.getWindowManagerService();
         // For unit test, we don't need to test performSurfacePlacement to prevent some abnormal
         // interaction with surfaceflinger native side.
         sOriginalRootWindowContainer = wm.mRoot;
@@ -74,7 +74,7 @@
 
     @AfterClass
     public static void tearDownRootWindowContainerMock() {
-        final WindowManagerService wm = WmServiceUtils.getWindowManagerService();
+        final WindowManagerService wm = TestSystemServices.getWindowManagerService();
         wm.mRoot = sOriginalRootWindowContainer;
         sOriginalRootWindowContainer = null;
     }
diff --git a/services/tests/wmtests/src/com/android/server/wm/WmServiceUtils.java b/services/tests/wmtests/src/com/android/server/wm/TestSystemServices.java
similarity index 97%
rename from services/tests/wmtests/src/com/android/server/wm/WmServiceUtils.java
rename to services/tests/wmtests/src/com/android/server/wm/TestSystemServices.java
index 05ac8c1..b151fb7 100644
--- a/services/tests/wmtests/src/com/android/server/wm/WmServiceUtils.java
+++ b/services/tests/wmtests/src/com/android/server/wm/TestSystemServices.java
@@ -66,7 +66,7 @@
 /**
  * A Test utility class to create a mock {@link WindowManagerService} instance for tests.
  */
-class WmServiceUtils {
+class TestSystemServices {
     private static StaticMockitoSession sMockitoSession;
     private static WindowManagerService sService;
     private static TestWindowManagerPolicy sPolicy;
@@ -78,7 +78,7 @@
                 .strictness(Strictness.LENIENT)
                 .startMocking();
 
-        runWithDexmakerShareClassLoader(WmServiceUtils::setUpTestWindowService);
+        runWithDexmakerShareClassLoader(TestSystemServices::setUpTestWindowService);
     }
 
     static void tearDownWindowManagerService() {
@@ -147,7 +147,7 @@
         final WindowManagerGlobalLock wmLock = new WindowManagerGlobalLock();
         doReturn(wmLock).when(atms).getGlobalLock();
 
-        sPolicy = new TestWindowManagerPolicy(WmServiceUtils::getWindowManagerService);
+        sPolicy = new TestWindowManagerPolicy(TestSystemServices::getWindowManagerService);
         sService = WindowManagerService.main(context, ims, false, false, sPolicy, atms);
 
         sService.onInitReady();
diff --git a/services/tests/wmtests/src/com/android/server/wm/WindowTestsBase.java b/services/tests/wmtests/src/com/android/server/wm/WindowTestsBase.java
index 89c1551..e38118e 100644
--- a/services/tests/wmtests/src/com/android/server/wm/WindowTestsBase.java
+++ b/services/tests/wmtests/src/com/android/server/wm/WindowTestsBase.java
@@ -101,14 +101,14 @@
     public static void setUpOnceBase() {
         AttributeCache.init(getInstrumentation().getTargetContext());
 
-        WmServiceUtils.setUpWindowManagerService();
+        TestSystemServices.setUpWindowManagerService();
 
         sPowerManagerWrapper = mock(WindowState.PowerManagerWrapper.class);
     }
 
     @AfterClass
     public static void tearDonwOnceBase() {
-        WmServiceUtils.tearDownWindowManagerService();
+        TestSystemServices.tearDownWindowManagerService();
     }
 
     @Before
@@ -120,7 +120,7 @@
 
             final Context context = getInstrumentation().getTargetContext();
 
-            mWm = WmServiceUtils.getWindowManagerService();
+            mWm = TestSystemServices.getWindowManagerService();
             beforeCreateDisplay();
 
             context.getDisplay().getDisplayInfo(mDisplayInfo);
@@ -198,7 +198,7 @@
             }
 
             // Cleaned up everything in Handler.
-            WmServiceUtils.cleanupWindowManagerHandlers();
+            TestSystemServices.cleanupWindowManagerHandlers();
         } catch (Exception e) {
             Log.e(TAG, "Failed to tear down test", e);
             throw e;
@@ -219,7 +219,7 @@
      * Waits until the main handler for WM has processed all messages.
      */
     void waitUntilHandlersIdle() {
-        WmServiceUtils.waitUntilWindowManagerHandlersIdle();
+        TestSystemServices.waitUntilWindowManagerHandlersIdle();
     }
 
     private WindowToken createWindowToken(