Block renderer-initiated main frame navigations to data URLs

content/browser/frame_host/navigation_handle_impl.h

 // Copyright 2015 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.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_NAVIGATION_HANDLE_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_HANDLE_IMPL_H_
 
 #include "content/public/browser/navigation_handle.h"
 
 #include <stddef.h>
@@ skipping 113 matching lines @@
   const base::TimeTicks& NavigationStart() override;
   bool IsPost() override;
   const Referrer& GetReferrer() override;
   bool HasUserGesture() override;
   ui::PageTransition GetPageTransition() override;
   bool IsExternalProtocol() override;
   net::Error GetNetErrorCode() override;
   RenderFrameHostImpl* GetRenderFrameHost() override;
   bool IsSameDocument() override;
   bool HasCommitted() override;
+  bool IsDownload() override;

[nasko, 2017/03/30 23:15:45]

This will move down and become is_download(), since we should not expose it
through the public interface quite yet.

[meacer, 2017/04/05 22:33:28]

By move down I assume you mean move away from the interface. If so, done.

   bool IsErrorPage() override;
   bool HasSubframeNavigationEntryCommitted() override;
   bool DidReplaceEntry() override;
   bool ShouldUpdateHistory() override;
   const GURL& GetPreviousURL() override;
   net::HostPortPair GetSocketAddress() override;
   const net::HttpResponseHeaders* GetResponseHeaders() override;
   net::HttpResponseInfo::ConnectionInfo GetConnectionInfo() override;
   void Resume() override;
   void CancelDeferredNavigation(
@@ skipping 413 matching lines @@
   SourceLocation source_location_;
 
   base::WeakPtrFactory<NavigationHandleImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationHandleImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_HANDLE_IMPL_H_