Tracing for NavigationHandle lifetime and state.

content/browser/frame_host/mixed_content_navigation_throttle.cc

 // Copyright 2017 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/mixed_content_navigation_throttle.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/stl_util.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/frame_tree_node.h"
@@ skipping 131 matching lines @@
 
 ThrottleCheckResult MixedContentNavigationThrottle::WillProcessResponse() {
   // TODO(carlosk): At this point we are about to process the request response.
   // So if we ever need to, here/now it is a good moment to check for the final
   // attained security level of the connection. For instance, does it use an
   // outdated protocol? The implementation should be based off
   // MixedContentChecker::handleCertificateError. See https://crbug.com/576270.
   return ThrottleCheckResult::PROCEED;
 }
 
+const char* MixedContentNavigationThrottle::GetNameForLogging() {
+  return "MixedContentNavigationThrottle";
+}
+
 // Based off of MixedContentChecker::shouldBlockFetch.
 bool MixedContentNavigationThrottle::ShouldBlockNavigation(bool for_redirect) {
   NavigationHandleImpl* handle_impl =
       static_cast<NavigationHandleImpl*>(navigation_handle());
   FrameTreeNode* node = handle_impl->frame_tree_node();
 
   // Find the parent node where mixed content is characterized, if any.
   FrameTreeNode* mixed_content_node =
       InWhichFrameIsContentMixed(node, handle_impl->GetURL());
   if (!mixed_content_node) {
@@ skipping 192 matching lines @@
 // static
 bool MixedContentNavigationThrottle::IsMixedContentForTesting(
     const GURL& origin_url,
     const GURL& url) {
   const url::Origin origin(origin_url);
   return !IsUrlPotentiallySecure(url) &&
          DoesOriginSchemeRestrictMixedContent(origin);
 }
 
 }  // namespace content