PlzNavigate: Expose blink to content enum type converters.

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 7ca7092e272f5ffc23f12c7e6cb9ef560d314101..4a1da0cf0fca844ecbe38d83ab1ca7b7f2e266dc 100644
--- a/content/child/web_url_request_util.h
+++ b/content/child/web_url_request_util.h
@@ -9,6 +9,9 @@
 
 #include "content/common/content_export.h"
 #include "content/common/resource_request_body.h"
+#include "content/common/service_worker/service_worker_types.h"
+#include "content/public/common/request_context_frame_type.h"
+#include "content/public/common/request_context_type.h"
 #include "content/public/common/resource_type.h"
 
 namespace blink {
@@ -32,6 +35,19 @@ int GetLoadFlagsForWebURLRequest(const blink::WebURLRequest& request);
 scoped_refptr<ResourceRequestBody> GetRequestBodyForWebURLRequest(
     const blink::WebURLRequest& request);
 
+// Helper functions to convert enums from the blink type to the content
+// type.
+FetchRequestMode GetFetchRequestModeForWebURLRequest(
+    const blink::WebURLRequest& request);
+FetchCredentialsMode GetFetchCredentialsModeForWebURLRequest(
+    const blink::WebURLRequest& request);
+FetchRedirectMode GetFetchRedirectModeForWebURLRequest(
+    const blink::WebURLRequest& request);
+RequestContextFrameType GetRequestContextFrameTypeForWebURLRequest(
+    const blink::WebURLRequest& request);
+RequestContextType GetRequestContextTypeForWebURLRequest(
+    const blink::WebURLRequest& request);
+
 // Generates a WebURLError based on |reason|.
 blink::WebURLError CreateWebURLError(const blink::WebURL& unreachable_url,
                                      bool stale_copy_in_cache,