Move base32 into base so that it can be used within base.

components/base32/BUILD.gn

Index: components/base32/BUILD.gn
diff --git a/components/base32/BUILD.gn b/components/base32/BUILD.gn
deleted file mode 100644
index 3e53a3f72fd07caa0f5f0337ba159441266e0b22..0000000000000000000000000000000000000000
--- a/components/base32/BUILD.gn
+++ /dev/null
@@ -1,26 +0,0 @@
-# Copyright 2016 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.
-
-static_library("base32") {
-  sources = [
-    "base32.cc",
-    "base32.h",
-  ]
-
-  deps = [
-    "//base",
-  ]
-}
-
-source_set("unit_tests") {
-  testonly = true
-  sources = [
-    "base32_unittest.cc",
-  ]
-
-  deps = [
-    ":base32",
-    "//testing/gtest",
-  ]
-}