Make base::Base64Encode() return void

base/base64.cc

Index: base/base64.cc
diff --git a/base/base64.cc b/base/base64.cc
index 9514b0a5c2ca7d44d5d24b692cb7ab8a004aeeeb..8ed1249257d6fd7de3472a5cc3e87a69edbe3e28 100644
--- a/base/base64.cc
+++ b/base/base64.cc
@@ -8,21 +8,15 @@
 
 namespace base {
 
-bool Base64Encode(const StringPiece& input, std::string* output) {
+void Base64Encode(const StringPiece& input, std::string* output) {
   std::string temp;
   temp.resize(modp_b64_encode_len(input.size()));  // makes room for null byte
 
-  // null terminates result since result is base64 text!
-  int input_size = static_cast<int>(input.size());
-
   // modp_b64_encode_len() returns at least 1, so temp[0] is safe to use.
-  size_t output_size = modp_b64_encode(&(temp[0]), input.data(), input_size);
-  if (output_size == MODP_B64_ERROR)
-    return false;
+  size_t output_size = modp_b64_encode(&(temp[0]), input.data(), input.size());
 
   temp.resize(output_size);  // strips off null byte
   output->swap(temp);
-  return true;
 }
 
 bool Base64Decode(const StringPiece& input, std::string* output) {