Removing NSS files and USE_OPENSSL flag

components/gcm_driver.gypi

Index: components/gcm_driver.gypi
diff --git a/components/gcm_driver.gypi b/components/gcm_driver.gypi
index 6590f8b39a0dbcf1448e2f9f9859493bcdb1fc48..0605cacbd3166396d0d9fabfeeb915dd654d9967 100644
--- a/components/gcm_driver.gypi
+++ b/components/gcm_driver.gypi
@@ -221,6 +221,7 @@
         '../components/components.gyp:leveldb_proto',
         '../crypto/crypto.gyp:crypto',
         '../net/net.gyp:net',
+        '../third_party/boringssl/boringssl.gyp:boringssl',
       ],
       'include_dirs': [
         '..',
@@ -235,29 +236,11 @@
         'gcm_driver/crypto/gcm_key_store.h',
         'gcm_driver/crypto/gcm_message_cryptographer.cc',
         'gcm_driver/crypto/gcm_message_cryptographer.h',
-        'gcm_driver/crypto/gcm_message_cryptographer_nss.cc',
         'gcm_driver/crypto/gcm_message_cryptographer_openssl.cc',
         'gcm_driver/crypto/p256_key_util.cc',
         'gcm_driver/crypto/p256_key_util.h',
-        'gcm_driver/crypto/p256_key_util_nss.cc',
         'gcm_driver/crypto/p256_key_util_openssl.cc',
       ],
-      'conditions': [
-        ['use_openssl==1', {
-          'sources!': [
-            'gcm_driver/crypto/gcm_message_cryptographer_nss.cc',
-            'gcm_driver/crypto/p256_key_util_nss.cc',
-          ],
-          'dependencies': [
-            '../third_party/boringssl/boringssl.gyp:boringssl',
-          ],
-        }, {
-          'sources!': [
-            'gcm_driver/crypto/gcm_message_cryptographer_openssl.cc',
-            'gcm_driver/crypto/p256_key_util_openssl.cc',
-          ],
-        }],
-      ],
     },
     {
       # GN version: //components/gcm_driver/crypto/proto