Add AndroidVideoSurfaceChooser to manage overlays.

media/gpu/BUILD.gn

Index: media/gpu/BUILD.gn
diff --git a/media/gpu/BUILD.gn b/media/gpu/BUILD.gn
index 036262375369be364c3245f9bcee4da12995ed81..f855df41ca19551d6ee51043f663bd6720596179 100644
--- a/media/gpu/BUILD.gn
+++ b/media/gpu/BUILD.gn
@@ -184,6 +184,9 @@ component("gpu") {
       "avda_codec_allocator.h",
       "avda_codec_image.cc",
       "avda_codec_image.h",
+      "avda_overlay_helper.h",
+      "avda_overlay_helper_impl.cc",
+      "avda_overlay_helper_impl.h",
       "avda_picture_buffer_manager.cc",
       "avda_picture_buffer_manager.h",
       "avda_shared_state.cc",
@@ -195,6 +198,8 @@ component("gpu") {
       "content_video_view_overlay.h",
       "content_video_view_overlay_allocator.cc",
       "content_video_view_overlay_allocator.h",
+      "content_video_view_overlay_factory.cc",
+      "content_video_view_overlay_factory.h",
       "surface_texture_gl_owner.cc",
       "surface_texture_gl_owner.h",
     ]
@@ -445,6 +450,7 @@ source_set("android_video_decode_accelerator_unittests") {
     sources = [
       "android_video_decode_accelerator_unittest.cc",
       "avda_codec_allocator_unittest.cc",
+      "avda_overlay_helper_impl_unittest.cc",
       "content_video_view_overlay_allocator_unittest.cc",
       "surface_texture_gl_owner_unittest.cc",
     ]
@@ -456,6 +462,7 @@ source_set("android_video_decode_accelerator_unittests") {
       "//base/test:test_support",
       "//gpu:test_support",
       "//media",
+      "//media/base/android:test_support",
       "//testing/gmock",
       "//testing/gtest",
     ]