Adds a base32 component.

components/base32/BUILD.gn

Index: components/base32/BUILD.gn
diff --git a/components/client_update_protocol/BUILD.gn b/components/base32/BUILD.gn
similarity index 64%
copy from components/client_update_protocol/BUILD.gn
copy to components/base32/BUILD.gn
index e3af8836de7ce4fc0a6ec36f8b49b64352a6414e..78136044798d4201e9d20b209a750c753261584b 100644
--- a/components/client_update_protocol/BUILD.gn
+++ b/components/base32/BUILD.gn
@@ -2,28 +2,25 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-source_set("client_update_protocol") {
+source_set("base32") {
   sources = [
-    "ecdsa.cc",
-    "ecdsa.h",
+    "base32.cc",
+    "base32.h",
   ]
 
   deps = [
     "//base",
-    "//crypto",
   ]
 }
 
 source_set("unit_tests") {
   testonly = true
   sources = [
-    "ecdsa_unittest.cc",
+    "base32_unittest.cc",
   ]
 
   deps = [
-    ":client_update_protocol",
-    "//base",
-    "//crypto",
+    ":base32",
     "//testing/gtest",
   ]
 }