Add some more TODOs for places to instrument certificate errors.

net/cert/internal/verify_signed_data_unittest.cc

Index: net/cert/internal/verify_signed_data_unittest.cc
diff --git a/net/cert/internal/verify_signed_data_unittest.cc b/net/cert/internal/verify_signed_data_unittest.cc
index 470aec4e634d7ac6383818cadcd5e6159c436aa5..7710abc47f2f5cb8ffed7e5b65467bc4e70e1ec7 100644
--- a/net/cert/internal/verify_signed_data_unittest.cc
+++ b/net/cert/internal/verify_signed_data_unittest.cc
@@ -67,12 +67,15 @@ void RunTestCaseUsingPolicy(VerifyResult expected_result,
 
   bool expected_result_bool = expected_result == SUCCESS;
 
-  // TODO(crbug.com/634443): Verify the returned errors.
   CertErrors verify_errors;
-  EXPECT_EQ(expected_result_bool,
-            VerifySignedData(*signature_algorithm, der::Input(&signed_data),
-                             signature_value_bit_string,
-                             der::Input(&public_key), policy, &verify_errors));
+  bool result =
+      VerifySignedData(*signature_algorithm, der::Input(&signed_data),
+                       signature_value_bit_string, der::Input(&public_key),
+                       policy, &verify_errors);
+  EXPECT_EQ(expected_result_bool, result);
+  // TODO(crbug.com/634443): Verify the returned errors.
+  // if (!result)
+  //   EXPECT_FALSE(verify_errors.empty());
 }
 
 // RunTestCase() is the same as RunTestCaseUsingPolicy(), only it uses a