Revert 239759 "The comment in base64.h implies that base::Base64..."

trunk/src/chrome/browser/devtools/adb/android_rsa.cc

 // Copyright (c) 2013 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.
 
 #include "chrome/browser/devtools/adb/android_rsa.h"
 
 #include "base/base64.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/prefs/pref_service_syncable.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 178 matching lines @@
     std::vector<uint8> key_info(decoded_key.begin(), decoded_key.end());
     key.reset(crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_info));
   }
   if (!key) {
     key.reset(crypto::RSAPrivateKey::Create(2048));
     std::vector<uint8> key_info;
     if (!key || !key->ExportPrivateKey(&key_info))
       return NULL;
 
     std::string key_string(key_info.begin(), key_info.end());
-    base::Base64Encode(key_string, &encoded_key);
-    profile->GetPrefs()->SetString(prefs::kDevToolsAdbKey,
-                                   encoded_key);
+    if (base::Base64Encode(key_string, &encoded_key)) {
+      profile->GetPrefs()->SetString(prefs::kDevToolsAdbKey,
+                                     encoded_key);
+    }
   }
   return key.release();
 }
 
 std::string AndroidRSAPublicKey(crypto::RSAPrivateKey* key) {
   std::vector<uint8> public_key;
   if (!key)
     return kDummyRSAPublicKey;
 
   key->ExportPublicKey(&public_key);
@@ skipping 49 matching lines @@
 std::string AndroidRSASign(crypto::RSAPrivateKey* key,
                            const std::string& body) {
   std::vector<uint8> digest(body.begin(), body.end());
   std::vector<uint8> result;
   if (!crypto::SignatureCreator::Sign(key, vector_as_array(&digest),
                                       digest.size(), &result)) {
     return std::string();
   }
   return std::string(result.begin(), result.end());
 }