Create BUILD.gn files for //media/formats.

media/base/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//media/media_options.gni")
@@ skipping 18 matching lines @@
 if (is_component_build) {
   link_target_type = "source_set"
 } else {
   link_target_type = "static_library"
 }
 target(link_target_type, "base") {
   # This should only be depended on by "media" target. Other targets should
   # depend on "media" target directly.
   visibility = [
     "//media",
+    "//media/formats",
 
     # TODO(xhwang): Clean up the dependency graph within "media" target.
     "//media/audio",
     "//media/ffmpeg",
   ]
   sources = [
     "android_overlay_config.cc",
     "android_overlay_config.h",
     "android_overlay_mojo_factory.h",
     "audio_block_fifo.cc",
@@ skipping 520 matching lines @@
 
 fuzzer_test("media_container_names_fuzzer") {
   sources = [
     "container_names_fuzzertest.cc",
   ]
   deps = [
     "//base",
     "//media",
   ]
 }