--- a/third_party/libpng/visibility.gni
+++ b/third_party/libpng/visibility.gni
@@ -49,10 +49,7 @@ visibility += [
   "//third_party/angle/third_party/glmark2:glmark2_common_gl",
   "//third_party/angle/third_party/glmark2:glmark2_common_gles",
   "//third_party/angle/util:angle_png_utils",
-]
 
-# Test/tool-only dependencies.
-libpng_testonly_visibility = [
   "//chrome/test:accessibility_live_site_tests",
   "//chrome/test:captured_sites_interactive_tests",
   "//chrome/test:interactive_ui_tests",
@@ -66,6 +63,8 @@ libpng_testonly_visibility = [
   # `//ui/gfx:gfx_unittests__library__jni_registration__native_sources` or
   # `//ui/gfx:gfx_unittests__exec`).
   "//ui/gfx:*",
+  "//third_party/pdfium/third_party:*",
+  "//third_party/blink/renderer/*",
 ]
 
 # Self-dependency (for internal targets defined in