Use absl base64 codec in favor of our own

Signed-off-by: Otto van der Schaaf <[email protected]>

Author: oschaaf

pagespeed/kernel/base/BUILD

@@ -182,7 +182,6 @@ cc_library(
     deps = [
         ":gtest_prod",
         ":pagespeed_base_core",
-        "//third_party/base64",
         "@jsoncpp",
     ],
 )

pagespeed/kernel/base/base64_util.h

@@ -17,37 +17,29 @@
  * under the License.
  */
 
-#ifndef PAGESPEED_KERNEL_BASE_BASE64_UTIL_H_
-#define PAGESPEED_KERNEL_BASE_BASE64_UTIL_H_
+#pragma once 
 
 #include "pagespeed/kernel/base/string.h"
 
-//#include "base/strings/string_piece.h"
 #include "pagespeed/kernel/base/string_util.h"
-#include "third_party/base64/base64.h"
+#include "absl/strings/escaping.h"
 
 namespace net_instaweb {
 
 inline void Web64Encode(const StringPiece& in, GoogleString* out) {
-  *out = web64_encode(reinterpret_cast<const unsigned char*>(in.data()),
-                      in.size());
+  *out = absl::WebSafeBase64Escape(in);
 }
 
 inline bool Web64Decode(const StringPiece& in, GoogleString* out) {
-  bool ret = web64_decode(in.as_string(), out);
-  return ret;
+  return absl::WebSafeBase64Unescape(in, out);
 }
 
 inline void Mime64Encode(const StringPiece& in, GoogleString* out) {
-  *out = base64_encode(reinterpret_cast<const unsigned char*>(in.data()),
-                       in.size());
+  *out = absl::Base64Escape(in);
 }
 
 inline bool Mime64Decode(const StringPiece& in, GoogleString* out) {
-  bool ret = base64_decode(in.as_string(), out);
-  return ret;
+  return absl::Base64Unescape(in, out);
 }
 
 }  // namespace net_instaweb
-
-#endif  // PAGESPEED_KERNEL_BASE_BASE64_UTIL_H_