Fix issue with no rounded corners on PIP

- Existing code dependend on SysUI config listeners making an extra
  density change callback when registering a config listener, but
  we should explicitly update the resources when creating the
  helper class as well

Bug: 239689748
Test: Enter pip, see it has rounded corners
Change-Id: I673e561567de91da40d02a87a4571b56794efbfe

libs/WindowManager/Shell/src/com/android/wm/shell/dagger/WMShellBaseModule.java

@@ -411,8 +411,8 @@ public abstract class WMShellBaseModule {
 
     @WMSingleton
     @Provides
-    static PipSurfaceTransactionHelper providePipSurfaceTransactionHelper() {
-        return new PipSurfaceTransactionHelper();
+    static PipSurfaceTransactionHelper providePipSurfaceTransactionHelper(Context context) {
+        return new PipSurfaceTransactionHelper(context);
     }
 
     @WMSingleton

libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipSurfaceTransactionHelper.java

@@ -39,6 +39,10 @@ public class PipSurfaceTransactionHelper {
     private int mCornerRadius;
     private int mShadowRadius;
 
+    public PipSurfaceTransactionHelper(Context context) {
+        onDensityOrFontScaleChanged(context);
+    }
+
     /**
      * Called when display size or font size of settings changed
      *

libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/pip/PipAnimationControllerTest.java

@@ -37,6 +37,7 @@ import android.testing.TestableLooper;
 import android.view.SurfaceControl;
 
 import androidx.test.filters.SmallTest;
+import androidx.test.platform.app.InstrumentationRegistry;
 
 import com.android.wm.shell.MockSurfaceControlHelper;
 import com.android.wm.shell.ShellTestCase;
@@ -62,19 +63,18 @@ public class PipAnimationControllerTest extends ShellTestCase {
 
     @Mock
     private TaskInfo mTaskInfo;
-
     @Mock
     private PipAnimationController.PipAnimationCallback mPipAnimationCallback;
 
     @Before
     public void setUp() throws Exception {
-        mPipAnimationController = new PipAnimationController(
-                new PipSurfaceTransactionHelper());
+        MockitoAnnotations.initMocks(this);
+        mPipAnimationController = new PipAnimationController(new PipSurfaceTransactionHelper(
+                InstrumentationRegistry.getInstrumentation().getTargetContext()));
         mLeash = new SurfaceControl.Builder()
                 .setContainerLayer()
                 .setName("FakeLeash")
                 .build();
-        MockitoAnnotations.initMocks(this);
     }
 
     @Test