bluetooth: Require valid UUIDs when testing against Web Bluetooth Blacklist.

content/browser/bluetooth/bluetooth_blacklist.h

Index: content/browser/bluetooth/bluetooth_blacklist.h
diff --git a/content/browser/bluetooth/bluetooth_blacklist.h b/content/browser/bluetooth/bluetooth_blacklist.h
index 83f03ae2df81ec899194127b78191e59510be822..4867e777c61294ed3d86186c3969b566b65173ef 100644
--- a/content/browser/bluetooth/bluetooth_blacklist.h
+++ b/content/browser/bluetooth/bluetooth_blacklist.h
@@ -44,16 +44,17 @@ class CONTENT_EXPORT BluetoothBlacklist final {
   // UUID is already in the blacklist.
   void AddOrDie(const device::BluetoothUUID&, Value);
 
-  // Returns if a UUID is excluded from all operations.
+  // Returns if a UUID is excluded from all operations. UUID must be valid.
   bool IsExcluded(const device::BluetoothUUID&) const;
 
   // Returns if any UUID in a set of filters is excluded from all operations.
+  // UUID must be valid.
   bool IsExcluded(const std::vector<content::BluetoothScanFilter>&);
 
-  // Returns if a UUID is excluded from read operations.
+  // Returns if a UUID is excluded from read operations. UUID must be valid.
   bool IsExcludedFromReads(const device::BluetoothUUID&) const;
 
-  // Returns if a UUID is excluded from write operations.
+  // Returns if a UUID is excluded from write operations. UUID must be valid.
   bool IsExcludedFromWrites(const device::BluetoothUUID&) const;
 
   // Modifies a list of UUIDs, removing any UUIDs with Value::EXCLUDE.