Tracing for NavigationHandle lifetime and state.

content/browser/frame_host/ancestor_throttle.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/frame_host/ancestor_throttle.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
@@ skipping 149 matching lines @@
       RecordXFrameOptionsUsage(BYPASS);
       return NavigationThrottle::PROCEED;
     case HeaderDisposition::ALLOWALL:
       RecordXFrameOptionsUsage(ALLOWALL);
       return NavigationThrottle::PROCEED;
   }
   NOTREACHED();
   return NavigationThrottle::BLOCK_RESPONSE;
 }
 
+const char* AncestorThrottle::GetNameForLogging() {
+  return "AncestorThrottle";
+}
+
 NavigationThrottle::ThrottleCheckResult
 AncestorThrottle::CheckContentSecurityPolicyFrameSrc(bool is_redirect) {
   // If PlzNavigate is enabled, "frame-src" is enforced on the browser side,
   // else on the renderer side.
   if (!IsBrowserSideNavigationEnabled())
     return NavigationThrottle::PROCEED;
 
   const GURL& url = navigation_handle()->GetURL();
   if (url.SchemeIs(url::kAboutScheme))
     return NavigationThrottle::PROCEED;
@@ skipping 121 matching lines @@
       HeadersContainFrameAncestorsCSP(headers)) {
     // TODO(mkwst): 'frame-ancestors' is currently handled in Blink. We should
     // handle it here instead. Until then, don't block the request, and let
     // Blink handle it. https://crbug.com/555418
     return HeaderDisposition::BYPASS;
   }
   return result;
 }
 
 }  // namespace content