Move //mojo/services/X/public/... to //mojo/services/X/... (part 3).

X = navigation,
    nfc,
    notifications,
    ozone_drm_gpu,
    ozone_drm_host,
    prediction,
    sensors,
    service_registry,
    sharing,
    speech_recognizer,
    surfaces,
    terminal,
    tracing,
    url_response_disk_cache

(Skipped network.)

R=jamesr@chromium.org

Review URL: https://codereview.chromium.org/1394303004 .
diff --git a/services/debugger/BUILD.gn b/services/debugger/BUILD.gn
index 7be1e75..4eea5b9 100644
--- a/services/debugger/BUILD.gn
+++ b/services/debugger/BUILD.gn
@@ -24,7 +24,7 @@
     "//mojo/services/http_server/cpp",
     "//mojo/services/http_server/interfaces",
     "//mojo/services/network/public/interfaces",
-    "//mojo/services/tracing/public/interfaces",
+    "//mojo/services/tracing/interfaces",
     "//mojo/services/window_manager/public/interfaces",
   ]
 }