Implement Connector::ApplySpec() & use to enforce navigation:frame

headless/lib/headless_web_contents_browsertest.cc

Index: headless/lib/headless_web_contents_browsertest.cc
diff --git a/headless/lib/headless_web_contents_browsertest.cc b/headless/lib/headless_web_contents_browsertest.cc
index 07a542fab2490ebcbe986234be44c3278b01fa97..bf11b95952eb33677ba9d331426fce0a9f7d0e4f 100644
--- a/headless/lib/headless_web_contents_browsertest.cc
+++ b/headless/lib/headless_web_contents_browsertest.cc
@@ -190,6 +190,11 @@ HEADLESS_ASYNC_DEVTOOLED_TEST_F(HeadlessWebContentsSecurityTest);
 class HeadlessTabSocketTest : public HeadlessAsyncDevTooledBrowserTest,
                               public HeadlessTabSocket::Listener {
  public:
+  void SetUp() override {
+    options()->mojo_service_names.insert("headless::TabSocket");
+    HeadlessAsyncDevTooledBrowserTest::SetUp();
+  }
+
   void RunDevTooledTest() override {
     devtools_client_->GetRuntime()->Evaluate(
         R"(window.TabSocket.onmessage =