Depend directly on destination targets.

Makes 'gn check' happy.
Followup to https://webrtc-review.googlesource.com/c/src/+/106820

Bug: webrtc:5876, webrtc:9855
Change-Id: I33fa2c31ba26dc10c9a9c17da0ffed255c1f4d5b
Reviewed-on: https://webrtc-review.googlesource.com/c/108760
Commit-Queue: Yves Gerey <yvesg@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25447}
diff --git a/modules/audio_coding/BUILD.gn b/modules/audio_coding/BUILD.gn
index 455dcd0..6a630e0 100644
--- a/modules/audio_coding/BUILD.gn
+++ b/modules/audio_coding/BUILD.gn
@@ -1437,6 +1437,7 @@
              ":neteq_tools",
              "../../rtc_base:rtc_base_approved",
              "../../test:test_support",
+             "//third_party/abseil-cpp/absl/strings",
              "//testing/gtest",
            ]
   }
@@ -2123,6 +2124,7 @@
       "codecs/opus/test:test_unittest",
       "//testing/gtest",
       "//third_party/abseil-cpp/absl/memory",
+      "//third_party/abseil-cpp/absl/types:optional",
     ]
 
     defines = audio_coding_defines