PlzNavigate: Implement RequestNavigation on the renderer side

content/child/web_url_request_util.h

Index: content/child/web_url_request_util.h
diff --git a/content/child/web_url_request_util.h b/content/child/web_url_request_util.h
index 0238ff09c4659779fe5ba6a6213be3ec51e6482b..b746d8067d26f35b64ac340d6fc33ece84ae3aaa 100644
--- a/content/child/web_url_request_util.h
+++ b/content/child/web_url_request_util.h
@@ -5,6 +5,8 @@
 #ifndef CONTENT_CHILD_TARGET_TYPE_CONVERSION_H_
 #define CONTENT_CHILD_TARGET_TYPE_CONVERSION_H_
 
+#include <string>
+
 #include "content/common/content_export.h"
 #include "content/public/common/resource_type.h"
 
@@ -17,6 +19,10 @@ namespace content {
 CONTENT_EXPORT ResourceType WebURLRequestToResourceType(
     const blink::WebURLRequest& request);
 
+std::string GetWebURLRequestHeaders(const blink::WebURLRequest& request);
+
+int GetLoadFlagsForWebURLRequest(const blink::WebURLRequest& request);
+
 }  // namespace content
 
 #endif  // CONTENT_CHILD_TARGET_TYPE_CONVERSION_H_