Reland 89038, but with a mocked out keychain (mac unit tests were timing out)

chrome/browser/sync/util/cryptographer_unittest.cc

Index: chrome/browser/sync/util/cryptographer_unittest.cc
diff --git a/chrome/browser/sync/util/cryptographer_unittest.cc b/chrome/browser/sync/util/cryptographer_unittest.cc
index f6881f4b200c74227542c0ad720364e2204a69af..90e4765dcf7b3260cee553e9526dd1e3ed67499c 100644
--- a/chrome/browser/sync/util/cryptographer_unittest.cc
+++ b/chrome/browser/sync/util/cryptographer_unittest.cc
@@ -25,6 +25,15 @@ TEST(CryptographerTest, EmptyCantDecrypt) {
   EXPECT_FALSE(cryptographer.CanDecrypt(encrypted));
 }
 
+TEST(CryptographerTest, EmptyCantEncrypt) {
+  Cryptographer cryptographer;
+  EXPECT_FALSE(cryptographer.is_ready());
+
+  sync_pb::EncryptedData encrypted;
+  sync_pb::PasswordSpecificsData original;
+  EXPECT_FALSE(cryptographer.Encrypt(original, &encrypted));
+}
+
 TEST(CryptographerTest, MissingCantDecrypt) {
   Cryptographer cryptographer;