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

base/base32.cc

Index: base/base32.cc
diff --git a/components/base32/base32.cc b/base/base32.cc
similarity index 93%
rename from components/base32/base32.cc
rename to base/base32.cc
index c6490fb2364f4915724e233116266ff941415eab..3ca94f2d38061874c6cad3621e26459ea67350a1 100644
--- a/components/base32/base32.cc
+++ b/base/base32.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "components/base32/base32.h"
+#include "base/base32.h"
 
 #include <stddef.h>
 #include <algorithm>
@@ -10,13 +10,13 @@
 
 #include "base/logging.h"
 
-namespace base32 {
+namespace base {
 
 namespace {
 constexpr char kEncoding[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
 }  // namespace
 
-std::string Base32Encode(base::StringPiece input, Base32EncodePolicy policy) {
+std::string Base32Encode(StringPiece input, Base32EncodePolicy policy) {
   if (input.empty())
     return std::string();
 
@@ -72,4 +72,4 @@ std::string Base32Encode(base::StringPiece input, Base32EncodePolicy policy) {
   return output;
 }
 
-}  // namespace base32
+}  // namespace base