DialogSurfaceHolder implementation.

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 6dea05a283c531dbf185d472a29c686561a54cc9..90f73f32db325f410e91878b8a564195d6acfbf5 100644
--- a/media/base/android/BUILD.gn
+++ b/media/base/android/BUILD.gn
@@ -34,6 +34,9 @@ source_set("android") {
     "demuxer_android.h",
     "demuxer_stream_player_params.cc",
     "demuxer_stream_player_params.h",
+    "dialog_surface_callback.cc",
+    "dialog_surface_callback.h",
+    "dialog_surface_holder.cc",
     "dialog_surface_holder.h",
     "dialog_surface_manager.cc",
     "dialog_surface_manager.h",
@@ -134,6 +137,8 @@ generate_jni("media_jni_headers") {
   sources = [
     "java/src/org/chromium/media/AudioManagerAndroid.java",
     "java/src/org/chromium/media/AudioRecordInput.java",
+    "java/src/org/chromium/media/DialogSurfaceCallback.java",
+    "java/src/org/chromium/media/DialogSurfaceHolderWrapper.java",
     "java/src/org/chromium/media/DialogSurfaceManagerWrapper.java",
     "java/src/org/chromium/media/MediaCodecBridge.java",
     "java/src/org/chromium/media/MediaCodecUtil.java",
@@ -155,6 +160,9 @@ android_library("media_java") {
   java_files = [
     "java/src/org/chromium/media/AudioManagerAndroid.java",
     "java/src/org/chromium/media/AudioRecordInput.java",
+    "java/src/org/chromium/media/DialogSurfaceCallback.java",
+    "java/src/org/chromium/media/DialogSurfaceHolder.java",
+    "java/src/org/chromium/media/DialogSurfaceHolderWrapper.java",
     "java/src/org/chromium/media/DialogSurfaceManager.java",
     "java/src/org/chromium/media/DialogSurfaceManagerWrapper.java",
     "java/src/org/chromium/media/MediaCodecBridge.java",