api-impl: add stubs / simple stuff for OsmAnd

without native libs present, launches and renders white square
in map view; with native libs present, segfaults in bundled skia

src/api-impl/android/media/AudioAttributes.java

@@ -8,6 +8,10 @@ public class AudioAttributes {
 
 	public class Builder {
 
+		public Builder setContentType(int content_type) {
+			return this;
+		}
+
 		public Builder setUsage(int usage) {
 			return this;
 		}

src/api-impl/android/media/SoundPool.java

@@ -36,6 +36,20 @@ public class SoundPool {
 		return nativePlay(nativePool, soundID);
 	}
 
+	public class Builder {
+		public Builder setAudioAttributes(AudioAttributes attributes) {
+			return this;
+		}
+
+		public Builder setMaxStreams(int maxStreams) {
+			return this;
+		}
+
+		public SoundPool build() {
+			return new SoundPool(0, 0, 0); // FIXME
+		}
+	}
+
 	private static native long native_constructor();
 	private static native int nativeLoad(long nativePool, String path);
 	public static native int nativePlay(long nativePool, int soundID);