Explicitly call SequenceToken's default constructor.

base/sequence_token_unittest.cc

Index: base/sequence_token_unittest.cc
diff --git a/base/sequence_token_unittest.cc b/base/sequence_token_unittest.cc
index 9cbf6747be8e114628c631b686fda7b5e453ab3e..2bdc02644178465c448df09bc3bd0cea20a4b0e0 100644
--- a/base/sequence_token_unittest.cc
+++ b/base/sequence_token_unittest.cc
@@ -14,8 +14,8 @@ TEST(SequenceTokenTest, IsValid) {
 }
 
 TEST(SequenceTokenTest, OperatorEquals) {
-  const SequenceToken invalid_a;
-  const SequenceToken invalid_b;
+  const SequenceToken invalid_a{};

[danakj, 2016/07/28 21:08:42]

Current style guidance is to not use {} to call a constructor like this. Can you
either write this as "= SequenceToken()" or just drop the const?

[jif, 2016/07/28 22:06:11]

Done.

+  const SequenceToken invalid_b{};
   const SequenceToken valid_a = SequenceToken::Create();
   const SequenceToken valid_b = SequenceToken::Create();
 
@@ -31,8 +31,8 @@ TEST(SequenceTokenTest, OperatorEquals) {
 }
 
 TEST(SequenceTokenTest, OperatorNotEquals) {
-  const SequenceToken invalid_a;
-  const SequenceToken invalid_b;
+  const SequenceToken invalid_a{};
+  const SequenceToken invalid_b{};
   const SequenceToken valid_a = SequenceToken::Create();
   const SequenceToken valid_b = SequenceToken::Create();