Deprecate graphics/FontFamily.

Bug: 123768928
Test: atest FontFamilyTest
Test: atest CtsWidgetTestCases:EditTextTest CtsWidgetTestCases:TextViewFadingEdgeTest FrameworksCoreTests:TextViewFallbackLineSpacingTest FrameworksCoreTests:TextViewTest FrameworksCoreTests:TypefaceTest CtsGraphicsTestCases:TypefaceTest CtsWidgetTestCases:TextViewTest CtsTextTestCases FrameworksCoreTests:android.text CtsWidgetTestCases:TextViewPrecomputedTextTest
Change-Id: I3fcfa4a75ada9cfe58d090f387fab03a4d807e20
diff --git a/graphics/java/android/graphics/FontFamily.java b/graphics/java/android/graphics/FontFamily.java
index 229923c..5d8ba93 100644
--- a/graphics/java/android/graphics/FontFamily.java
+++ b/graphics/java/android/graphics/FontFamily.java
@@ -36,7 +36,10 @@
  * A family of typefaces with different styles.
  *
  * @hide
+ *
+ * @deprecated Use {@link android.graphics.fonts.FontFamily} instead.
  */
+@Deprecated
 public class FontFamily {
 
     private static String TAG = "FontFamily";
@@ -51,20 +54,28 @@
 
     /**
      * @hide
+     *
+     * This cannot be deleted because it's in use by AndroidX.
      */
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(trackingBug = 123768928)
     public long mNativePtr;
 
     // Points native font family builder. Must be zero after freezing this family.
     private long mBuilderPtr;
 
-    @UnsupportedAppUsage
+    /**
+     * This cannot be deleted because it's in use by AndroidX.
+     */
+    @UnsupportedAppUsage(trackingBug = 123768928)
     public FontFamily() {
         mBuilderPtr = nInitBuilder(null, 0);
         mNativeBuilderCleaner = sBuilderRegistry.registerNativeAllocation(this, mBuilderPtr);
     }
 
-    @UnsupportedAppUsage
+    /**
+     * This cannot be deleted because it's in use by AndroidX.
+     */
+    @UnsupportedAppUsage(trackingBug = 123768928)
     public FontFamily(@Nullable String[] langs, int variant) {
         final String langsString;
         if (langs == null || langs.length == 0) {
@@ -83,8 +94,10 @@
      *
      * @return boolean returns false if some error happens in native code, e.g. broken font file is
      *                 passed, etc.
+     *
+     * This cannot be deleted because it's in use by AndroidX.
      */
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(trackingBug = 123768928)
     public boolean freeze() {
         if (mBuilderPtr == 0) {
             throw new IllegalStateException("This FontFamily is already frozen");
@@ -98,7 +111,10 @@
         return mNativePtr != 0;
     }
 
-    @UnsupportedAppUsage
+    /**
+     * This cannot be deleted because it's in use by AndroidX.
+     */
+    @UnsupportedAppUsage(trackingBug = 123768928)
     public void abortCreation() {
         if (mBuilderPtr == 0) {
             throw new IllegalStateException("This FontFamily is already frozen or abandoned");
@@ -107,6 +123,10 @@
         mBuilderPtr = 0;
     }
 
+    /**
+     * This cannot be deleted because it's in use by AndroidX.
+     */
+    @UnsupportedAppUsage(trackingBug = 123768928)
     public boolean addFont(String path, int ttcIndex, FontVariationAxis[] axes, int weight,
             int italic) {
         if (mBuilderPtr == 0) {
@@ -128,7 +148,10 @@
         }
     }
 
-    @UnsupportedAppUsage
+    /**
+     * This cannot be deleted because it's in use by AndroidX.
+     */
+    @UnsupportedAppUsage(trackingBug = 123768928)
     public boolean addFontFromBuffer(ByteBuffer font, int ttcIndex, FontVariationAxis[] axes,
             int weight, int italic) {
         if (mBuilderPtr == 0) {
@@ -153,8 +176,10 @@
      * @param isItalic Whether this font is italic. If the weight is set to 0, this will be resolved
      *            using the OS/2 table in the font.
      * @return
+     *
+     * This cannot be deleted because it's in use by AndroidX.
      */
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(trackingBug = 123768928)
     public boolean addFontFromAssetManager(AssetManager mgr, String path, int cookie,
             boolean isAsset, int ttcIndex, int weight, int isItalic,
             FontVariationAxis[] axes) {
diff --git a/graphics/java/android/graphics/Typeface.java b/graphics/java/android/graphics/Typeface.java
index d07088b..27a51ec 100644
--- a/graphics/java/android/graphics/Typeface.java
+++ b/graphics/java/android/graphics/Typeface.java
@@ -125,7 +125,11 @@
     static final Map<String, Typeface> sSystemFontMap;
 
     // We cannot support sSystemFallbackMap since we will migrate to public FontFamily API.
+    /**
+     * @deprecated Use {@link android.graphics.fonts.FontFamily} instead.
+     */
     @UnsupportedAppUsage
+    @Deprecated
     static final Map<String, android.graphics.FontFamily[]> sSystemFallbackMap =
             Collections.emptyMap();
 
@@ -1019,8 +1023,11 @@
 
     /**
      * This method is used by supportlib-v27.
+     *
+     * @deprecated Use {@link android.graphics.fonts.FontFamily} instead.
      */
     @UnsupportedAppUsage(trackingBug = 123768395)
+    @Deprecated
     private static Typeface createFromFamiliesWithDefault(
             android.graphics.FontFamily[] families, int weight, int italic) {
         return createFromFamiliesWithDefault(families, DEFAULT_FAMILY, weight, italic);
@@ -1038,8 +1045,11 @@
      *               the first family's font is used. If the first family has multiple fonts, the
      *               closest to the regular weight and upright font is used.
      * @param families array of font families
+     *
+     * @deprecated Use {@link android.graphics.fonts.FontFamily} instead.
      */
     @UnsupportedAppUsage
+    @Deprecated
     private static Typeface createFromFamiliesWithDefault(android.graphics.FontFamily[] families,
                 String fallbackName, int weight, int italic) {
         android.graphics.fonts.FontFamily[] fallback = SystemFonts.getSystemFallback(fallbackName);