relnote: n/a (test only) QUIC - make MockConnectionHelper::TestAlarm public.

net/quic/test_tools/quic_test_utils.h

Index: net/quic/test_tools/quic_test_utils.h
diff --git a/net/quic/test_tools/quic_test_utils.h b/net/quic/test_tools/quic_test_utils.h
index 6868410594f66551ef63682268f5ff757cd22f19..0856dba8fc01507c34c97293ad168b8fea2daf4a 100644
--- a/net/quic/test_tools/quic_test_utils.h
+++ b/net/quic/test_tools/quic_test_utils.h
@@ -305,6 +305,21 @@ class MockConnectionHelper : public QuicConnectionHelperInterface {
   QuicBufferAllocator* GetBufferAllocator() override;
   void AdvanceTime(QuicTime::Delta delta);
 
+  // No-op alarm implementation
+  class TestAlarm : public QuicAlarm {
+   public:
+    explicit TestAlarm(QuicAlarm::Delegate* delegate) : QuicAlarm(delegate) {}
+
+    void SetImpl() override {}
+    void CancelImpl() override {}
+
+    using QuicAlarm::Fire;
+  };
+
+  void FireAlarm(QuicAlarm* alarm) {
+    reinterpret_cast<TestAlarm*>(alarm)->Fire();
+  }
+
  private:
   MockClock clock_;
   MockRandom random_generator_;