Separate CryptoVerifyImpl into its own file.

chrome/common/extensions/api/networking_private/networking_private_crypto_nss.cc

Index: chrome/common/extensions/api/networking_private/networking_private_crypto_nss.cc
diff --git a/chrome/common/extensions/api/networking_private/networking_private_crypto_nss.cc b/chrome/common/extensions/api/networking_private/networking_private_crypto_nss.cc
index 42c76e0e4aa93ca07dc34be3510fd0ea5b4de418..2cdc33b68a0abca49eef4af2424e79c5e781c830 100644
--- a/chrome/common/extensions/api/networking_private/networking_private_crypto_nss.cc
+++ b/chrome/common/extensions/api/networking_private/networking_private_crypto_nss.cc
@@ -44,11 +44,12 @@ bool GetDERFromPEM(const std::string& pem_data,
 
 }  // namespace
 
-bool NetworkingPrivateCrypto::VerifyCredentials(
-    const std::string& certificate,
-    const std::string& signature,
-    const std::string& data,
-    const std::string& connected_mac) {
+namespace networking_private_crypto {
+
+bool VerifyCredentials(const std::string& certificate,
+                       const std::string& signature,
+                       const std::string& data,
+                       const std::string& connected_mac) {
   crypto::EnsureNSSInit();
 
   std::vector<uint8_t> cert_data;
@@ -133,10 +134,9 @@ bool NetworkingPrivateCrypto::VerifyCredentials(
   return true;
 }
 
-bool NetworkingPrivateCrypto::EncryptByteString(
-    const std::vector<uint8_t>& pub_key_der,
-    const std::string& data,
-    std::vector<uint8_t>* encrypted_output) {
+bool EncryptByteString(const std::vector<uint8_t>& pub_key_der,
+                       const std::string& data,
+                       std::vector<uint8_t>* encrypted_output) {
   crypto::EnsureNSSInit();
 
   SECItem pub_key_der_item;
@@ -175,10 +175,9 @@ bool NetworkingPrivateCrypto::EncryptByteString(
   return true;
 }
 
-bool NetworkingPrivateCrypto::DecryptByteString(
-    const std::string& private_key_pem,
-    const std::vector<uint8_t>& encrypted_data,
-    std::string* decrypted_output) {
+bool DecryptByteString(const std::string& private_key_pem,
+                       const std::vector<uint8_t>& encrypted_data,
+                       std::string* decrypted_output) {
   crypto::EnsureNSSInit();
 
   std::vector<uint8_t> private_key_data;
@@ -211,3 +210,5 @@ bool NetworkingPrivateCrypto::DecryptByteString(
                            output_length);
   return true;
 }
+
+}  // namespace networking_private_crypto