transcoding: Actually hide the isSlowMotionSupported api.

Bug: 169965769
Test: atest  CtsMediaTranscodingTestCases:MediaTranscodeManagerTest
Change-Id: Ie0ac848516cc3fbd22e86c66a8e6b00c0a3606d3
diff --git a/apex/media/framework/api/current.txt b/apex/media/framework/api/current.txt
index bebf019..b7d7ed8 100644
--- a/apex/media/framework/api/current.txt
+++ b/apex/media/framework/api/current.txt
@@ -10,7 +10,6 @@
     method @NonNull public java.util.List<java.lang.String> getUnsupportedVideoMimeTypes();
     method public boolean isFormatSpecified(@NonNull String);
     method public boolean isHdrTypeSupported(@NonNull String);
-    method public boolean isSlowMotionSupported();
     method public boolean isVideoMimeTypeSupported(@NonNull String);
     method public void writeToParcel(@NonNull android.os.Parcel, int);
     field @NonNull public static final android.os.Parcelable.Creator<android.media.ApplicationMediaCapabilities> CREATOR;
diff --git a/apex/media/framework/java/android/media/ApplicationMediaCapabilities.java b/apex/media/framework/java/android/media/ApplicationMediaCapabilities.java
index 3f30d3e..97fa0ec 100644
--- a/apex/media/framework/java/android/media/ApplicationMediaCapabilities.java
+++ b/apex/media/framework/java/android/media/ApplicationMediaCapabilities.java
@@ -242,7 +242,7 @@
                 }
             };
 
-    /*
+    /**
      * Query the video codec mime types supported by the application.
      * @return List of supported video codec mime types. The list will be empty if there are none.
      */
@@ -251,7 +251,7 @@
         return new ArrayList<>(mSupportedVideoMimeTypes);
     }
 
-    /*
+    /**
      * Query the video codec mime types that are not supported by the application.
      * @return List of unsupported video codec mime types. The list will be empty if there are none.
      */
@@ -260,7 +260,7 @@
         return new ArrayList<>(mUnsupportedVideoMimeTypes);
     }
 
-    /*
+    /**
      * Query all hdr types that are supported by the application.
      * @return List of supported hdr types. The list will be empty if there are none.
      */
@@ -269,7 +269,7 @@
         return new ArrayList<>(mSupportedHdrTypes);
     }
 
-    /*
+    /**
      * Query all hdr types that are not supported by the application.
      * @return List of unsupported hdr types. The list will be empty if there are none.
      */
@@ -278,7 +278,7 @@
         return new ArrayList<>(mUnsupportedHdrTypes);
     }
 
-    /*
+    /**
      * Whether handling of slow-motion video is supported
      * @hide
      */