Fix missing comment

Replace 'ToDo' with actual comment.

Bug: none
Change-Id: I83f405214e68f0797975b60844658141b5e4a190
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1787554Reviewed-by: Alexander Hendrich <hendrich@chromium.org>
Reviewed-by: Nikita Podguzov <nikitapodguzov@google.com>
Commit-Queue: Alexander Hendrich <hendrich@chromium.org>
Commit-Queue: Nikita Podguzov <nikitapodguzov@google.com>
Auto-Submit: Alexander Hendrich <hendrich@chromium.org>
Cr-Commit-Position: refs/heads/master@{#693945}

components/policy/core/common/cloud/cloud_policy_validator.h

@@ -158,7 +158,7 @@ class POLICY_EXPORT CloudPolicyValidatorBase {
     return policy_data_;
   }
 
-  // ToDo
+  // Retrieve the policy value validation result.
   std::unique_ptr<ValidationResult> GetValidationResult() const;
 
   // Instruct the validator to check that the policy timestamp is present and is