Replace usages of DEPRECATED_java_in_dir with java_files

media/base/android/BUILD.gn

Index: media/base/android/BUILD.gn
diff --git a/media/base/android/BUILD.gn b/media/base/android/BUILD.gn
index be0e3d878acc0acdb27ec675b6a84c4db3190110..c3fd33f6e118485c51a4bfe942fb1cf514c5cd69 100644
--- a/media/base/android/BUILD.gn
+++ b/media/base/android/BUILD.gn
@@ -126,5 +126,13 @@ android_library("media_java") {
     "//base:base_java",
   ]
 
-  DEPRECATED_java_in_dir = "java/src"
+  java_files = [
+    "java/src/org/chromium/media/AudioManagerAndroid.java",
+    "java/src/org/chromium/media/AudioRecordInput.java",
+    "java/src/org/chromium/media/MediaCodecBridge.java",
+    "java/src/org/chromium/media/MediaCodecUtil.java",
+    "java/src/org/chromium/media/MediaDrmBridge.java",
+    "java/src/org/chromium/media/MediaPlayerBridge.java",
+    "java/src/org/chromium/media/MediaPlayerListener.java",
+  ]
 }