Switch demo apps from HttpDataSource to DataSource

All the (Http)DataSource interactions can be done with the DataSource
interface and don't need HttpDataSource.

PiperOrigin-RevId: 436521036

demos/gl/src/main/java/androidx/media3/demo/gl/MainActivity.java

@@ -32,7 +32,6 @@ import androidx.media3.common.util.Util;
 import androidx.media3.datasource.DataSource;
 import androidx.media3.datasource.DefaultDataSource;
 import androidx.media3.datasource.DefaultHttpDataSource;
-import androidx.media3.datasource.HttpDataSource;
 import androidx.media3.exoplayer.ExoPlayer;
 import androidx.media3.exoplayer.dash.DashMediaSource;
 import androidx.media3.exoplayer.drm.DefaultDrmSessionManager;
@@ -144,7 +143,7 @@ public final class MainActivity extends Activity {
       String drmScheme = Assertions.checkNotNull(intent.getStringExtra(DRM_SCHEME_EXTRA));
       String drmLicenseUrl = Assertions.checkNotNull(intent.getStringExtra(DRM_LICENSE_URL_EXTRA));
       UUID drmSchemeUuid = Assertions.checkNotNull(Util.getDrmUuid(drmScheme));
-      HttpDataSource.Factory licenseDataSourceFactory = new DefaultHttpDataSource.Factory();
+      DataSource.Factory licenseDataSourceFactory = new DefaultHttpDataSource.Factory();
       HttpMediaDrmCallback drmCallback =
           new HttpMediaDrmCallback(drmLicenseUrl, licenseDataSourceFactory);
       drmSessionManager =

demos/main/src/main/java/androidx/media3/demo/main/DemoUtil.java

@@ -21,7 +21,6 @@ import androidx.media3.database.StandaloneDatabaseProvider;
 import androidx.media3.datasource.DataSource;
 import androidx.media3.datasource.DefaultDataSource;
 import androidx.media3.datasource.DefaultHttpDataSource;
-import androidx.media3.datasource.HttpDataSource;
 import androidx.media3.datasource.cache.Cache;
 import androidx.media3.datasource.cache.CacheDataSource;
 import androidx.media3.datasource.cache.NoOpCacheEvictor;
@@ -59,7 +58,7 @@ public final class DemoUtil {
   private static final String DOWNLOAD_CONTENT_DIRECTORY = "downloads";
 
   private static DataSource.@MonotonicNonNull Factory dataSourceFactory;
-  private static HttpDataSource.@MonotonicNonNull Factory httpDataSourceFactory;
+  private static DataSource.@MonotonicNonNull Factory httpDataSourceFactory;
   private static @MonotonicNonNull DatabaseProvider databaseProvider;
   private static @MonotonicNonNull File downloadDirectory;
   private static @MonotonicNonNull Cache downloadCache;
@@ -85,7 +84,7 @@ public final class DemoUtil {
         .setExtensionRendererMode(extensionRendererMode);
   }
 
-  public static synchronized HttpDataSource.Factory getHttpDataSourceFactory(Context context) {
+  public static synchronized DataSource.Factory getHttpDataSourceFactory(Context context) {
     if (httpDataSourceFactory == null) {
       if (USE_CRONET_FOR_NETWORKING) {
         context = context.getApplicationContext();

demos/surface/src/main/java/androidx/media3/demo/surface/MainActivity.java

@@ -35,7 +35,6 @@ import androidx.media3.common.util.Util;
 import androidx.media3.datasource.DataSource;
 import androidx.media3.datasource.DefaultDataSource;
 import androidx.media3.datasource.DefaultHttpDataSource;
-import androidx.media3.datasource.HttpDataSource;
 import androidx.media3.exoplayer.ExoPlayer;
 import androidx.media3.exoplayer.dash.DashMediaSource;
 import androidx.media3.exoplayer.drm.DefaultDrmSessionManager;
@@ -189,7 +188,7 @@ public final class MainActivity extends Activity {
       String drmScheme = Assertions.checkNotNull(intent.getStringExtra(DRM_SCHEME_EXTRA));
       String drmLicenseUrl = Assertions.checkNotNull(intent.getStringExtra(DRM_LICENSE_URL_EXTRA));
       UUID drmSchemeUuid = Assertions.checkNotNull(Util.getDrmUuid(drmScheme));
-      HttpDataSource.Factory licenseDataSourceFactory = new DefaultHttpDataSource.Factory();
+      DataSource.Factory licenseDataSourceFactory = new DefaultHttpDataSource.Factory();
       HttpMediaDrmCallback drmCallback =
           new HttpMediaDrmCallback(drmLicenseUrl, licenseDataSourceFactory);
       drmSessionManager =