Provide callback to create mojo AndroidOverlays to AVDA.

media/gpu/android_video_decode_accelerator_unittest.cc

Index: media/gpu/android_video_decode_accelerator_unittest.cc
diff --git a/media/gpu/android_video_decode_accelerator_unittest.cc b/media/gpu/android_video_decode_accelerator_unittest.cc
index ad0693a3773f0a3e335fdc8fc79a8ec55efdc708..751bc54afd9a5a8b80d947da1631fb379d59548b 100644
--- a/media/gpu/android_video_decode_accelerator_unittest.cc
+++ b/media/gpu/android_video_decode_accelerator_unittest.cc
@@ -333,7 +333,7 @@ class AndroidVideoDecodeAcceleratorTest : public testing::Test {
         &codec_allocator_, std::move(chooser_that_is_usually_null_),
         base::Bind(&MakeContextCurrent),
         base::Bind(&GetGLES2Decoder, gl_decoder_.AsWeakPtr()),
-        platform_config_);
+        AndroidOverlayMojoFactoryCB(), platform_config_);
     vda_.reset(avda);
 
     bool result = vda_->Initialize(config_, &client_);