Fix TV PiP custom action style

Bug: 269156537
Test: manual - open PiP with custom close action -> close button should
be red (darker when not focused).

Change-Id: I4ae7f7b0b13446d29572fa93faffd575c23e8364
(cherry picked from commit 2f27e357b0)

libs/WindowManager/Shell/res/drawable/tv_window_button_bg.xml

@@ -17,5 +17,5 @@
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
     android:shape="rectangle">
     <corners android:radius="@dimen/tv_window_menu_button_radius" />
-    <solid android:color="@color/tv_window_menu_icon_bg" />
+    <solid android:color="@android:color/white" />
 </shape>

libs/WindowManager/Shell/src/com/android/wm/shell/common/TvWindowMenuActionButton.java

@@ -70,6 +70,8 @@ public class TvWindowMenuActionButton extends RelativeLayout {
             setTextAndDescription(textResId);
         }
         typedArray.recycle();
+
+        setIsCustomCloseAction(false);
     }
 
     /**

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

@@ -60,6 +60,7 @@ public class TvPipCustomAction extends TvPipAction {
         }
         button.setImageIconAsync(mRemoteAction.getIcon(), mainHandler);
         button.setEnabled(isCloseAction() || mRemoteAction.isEnabled());
+        button.setIsCustomCloseAction(isCloseAction());
     }
 
     PendingIntent getPendingIntent() {

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

@@ -61,6 +61,7 @@ public class TvPipSystemAction extends TvPipAction {
         button.setTextAndDescription(mTitleResource);
         button.setImageResource(mIconResource);
         button.setEnabled(true);
+        button.setIsCustomCloseAction(false);
     }
 
     PendingIntent getPendingIntent() {