PlzNavigate: preserve SourceLocation when navigating

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

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 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 12 matching lines @@
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef DocumentLoader_h
 #define DocumentLoader_h
 
+#include <memory>
+#include "bindings/core/v8/SourceLocation.h"
 #include "core/CoreExport.h"
 #include "core/dom/ViewportDescription.h"
 #include "core/dom/WeakIdentifierMap.h"
 #include "core/frame/FrameTypes.h"
 #include "core/frame/csp/ContentSecurityPolicy.h"
 #include "core/loader/DocumentLoadTiming.h"
 #include "core/loader/DocumentWriter.h"
 #include "core/loader/FrameLoaderTypes.h"
 #include "core/loader/LinkLoader.h"
 #include "core/loader/NavigationPolicy.h"
@@ skipping 133 matching lines @@
   InitialScrollState& initialScrollState() { return m_initialScrollState; }
 
   void setWasBlockedAfterCSP() { m_wasBlockedAfterCSP = true; }
   bool wasBlockedAfterCSP() { return m_wasBlockedAfterCSP; }
 
   void dispatchLinkHeaderPreloads(ViewportDescriptionWrapper*,
                                   LinkLoader::MediaPreloadPolicy);
 
   Resource* startPreload(Resource::Type, FetchRequest&);
 
+  std::unique_ptr<SourceLocation> copySourceLocation() const;
+  void setSourceLocation(std::unique_ptr<SourceLocation>);
+
   DECLARE_VIRTUAL_TRACE();
 
  protected:
   DocumentLoader(LocalFrame*,
                  const ResourceRequest&,
                  const SubstituteData&,
                  ClientRedirectPolicy);
 
   Vector<KURL> m_redirectChain;
 
@@ skipping 80 matching lines @@
   double m_timeOfLastDataReceived;
 
   Member<ApplicationCacheHost> m_applicationCacheHost;
 
   Member<ContentSecurityPolicy> m_contentSecurityPolicy;
   ClientHintsPreferences m_clientHintsPreferences;
   InitialScrollState m_initialScrollState;
 
   bool m_wasBlockedAfterCSP;
 
+  // PlzNavigate: set when committing a navigation. The data has originally been
+  // captured when the navigation was sent to the browser process, and it is
+  // sent back at commit time.
+  std::unique_ptr<SourceLocation> m_sourceLocation;
+
   enum State {
     NotStarted,
     Provisional,
     Committed,
     SentDidFinishLoad
   };
   State m_state;
 
   // Used to protect against reentrancy into dataReceived().
   bool m_inDataReceived;
   RefPtr<SharedBuffer> m_dataBuffer;
 };
 
 DECLARE_WEAK_IDENTIFIER_MAP(DocumentLoader);
 
 }  // namespace blink
 
 #endif  // DocumentLoader_h