PlzNavigate: preserve SourceLocation when navigating

third_party/WebKit/public/web/WebDataSource.h

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
  * 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 WebDataSource_h
 #define WebDataSource_h
 
 #include "../platform/WebCommon.h"
 #include "WebNavigationType.h"
+#include "WebSourceLocation.h"
 #include "WebTextDirection.h"
 
 namespace blink {
 
 class WebDocumentSubresourceFilter;
 class WebURL;
 class WebURLRequest;
 class WebURLResponse;
 template <typename T>
 class WebVector;
@@ skipping 67 matching lines @@
                                 double redirectEndTime,
                                 double fetchStartTime,
                                 bool hasRedirect) = 0;
 
   // Allows the embedder to inject a filter that will be consulted for each
   // subsequent subresource load, and gets the final say in deciding whether
   // or not to allow the load. The passed-in filter object is deleted when the
   // datasource is destroyed or when a new filter is set.
   virtual void setSubresourceFilter(WebDocumentSubresourceFilter*) = 0;
 
+  // PlzNavigate
+  // Allows to specify the SourceLocation that triggered the navigation.
+  virtual void setSourceLocation(const WebSourceLocation&) = 0;
+  virtual void resetSourceLocation() = 0;
+
  protected:
   ~WebDataSource() {}
 };
 
 }  // namespace blink
 
 #endif