Initialize a default feature policy for all documents

third_party/WebKit/Source/core/loader/DocumentLoader.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 977 matching lines @@
   // Links with media values need more information (like viewport information).
   // This happens after the first chunk is parsed in HTMLDocumentParser.
   DispatchLinkHeaderPreloads(nullptr, LinkLoader::kOnlyLoadNonMedia);
 
   TRACE_EVENT1("devtools.timeline", "CommitLoad", "data",
                InspectorCommitLoadEvent::Data(frame_));
   probe::didCommitLoad(frame_, this);
   frame_->GetPage()->DidCommitLoad(frame_);
 }
 
-void SetFeaturePolicy(Document* document, const String& feature_policy_header) {
-  if (!RuntimeEnabledFeatures::featurePolicyEnabled())
-    return;
-  LocalFrame* frame = document->GetFrame();
-  WebFeaturePolicy* parent_feature_policy =
-      frame->IsMainFrame()
-          ? nullptr
-          : frame->Tree().Parent()->GetSecurityContext()->GetFeaturePolicy();
-  Vector<String> messages;
-  const WebParsedFeaturePolicy& parsed_header = ParseFeaturePolicy(
-      feature_policy_header, frame->GetSecurityContext()->GetSecurityOrigin(),
-      &messages);
-  WebParsedFeaturePolicy container_policy;
-  if (frame->Owner())
-    container_policy = frame->Owner()->ContainerPolicy();
-  // Check that if there is a parent frame, that its feature policy is
-  // correctly initialized. Crash if that is not the case. (Temporary crash for
-  // isolating the cause of https://crbug.com/722333)
-  // Note that even with this check removed, the process will stil crash in
-  // feature_policy.cc when it attempts to dereference parent_feature_policy.
-  // This check is to distinguish between two possible causes.
-  if (!container_policy.empty())
-    CHECK(frame->IsMainFrame() || parent_feature_policy);
-  frame->GetSecurityContext()->InitializeFeaturePolicy(
-      parsed_header, container_policy, parent_feature_policy);
-
-  for (auto& message : messages) {
-    document->AddConsoleMessage(
-        ConsoleMessage::Create(kOtherMessageSource, kErrorMessageLevel,
-                               "Error with Feature-Policy header: " + message));
-  }
-  if (!parsed_header.empty())
-    frame->Client()->DidSetFeaturePolicyHeader(parsed_header);
-}
-
 // static
 bool DocumentLoader::ShouldClearWindowName(
     const LocalFrame& frame,
     SecurityOrigin* previous_security_origin,
     const Document& new_document) {
   if (!previous_security_origin)
     return false;
   if (!frame.IsMainFrame())
     return false;
   if (frame.Loader().Opener())
@@ skipping 46 matching lines @@
   // will use stale values from HTMLParserOption.
   if (reason == InstallNewDocumentReason::kNavigation)
     DidCommitNavigation();
 
   writer_ =
       DocumentWriter::Create(document, parsing_policy, mime_type, encoding);
 
   // FeaturePolicy is reset in the browser process on commit, so this needs to
   // be initialized and replicated to the browser process after commit messages
   // are sent in didCommitNavigation().
-  SetFeaturePolicy(document,
-                   response_.HttpHeaderField(HTTPNames::Feature_Policy));
+  document->SetFeaturePolicy(
+      response_.HttpHeaderField(HTTPNames::Feature_Policy));
 
   GetFrameLoader().DispatchDidClearDocumentOfWindowObject();
 }
 
 const AtomicString& DocumentLoader::MimeType() const {
   if (writer_)
     return writer_->MimeType();
   return response_.MimeType();
 }
 
 // This is only called by
 // FrameLoader::replaceDocumentWhileExecutingJavaScriptURL()
 void DocumentLoader::ReplaceDocumentWhileExecutingJavaScriptURL(
     const DocumentInit& init,
     const String& source) {
   InstallNewDocument(init, MimeType(),
                      writer_ ? writer_->Encoding() : g_empty_atom,
                      InstallNewDocumentReason::kJavascriptURL,
                      kForceSynchronousParsing, KURL());
   if (!source.IsNull())
     writer_->AppendReplacingData(source);
   EndWriting();
 }
 
 DEFINE_WEAK_IDENTIFIER_MAP(DocumentLoader);
 
 }  // namespace blink