Revert of Simplify starting a navigation

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

Index: third_party/WebKit/Source/core/loader/DocumentLoader.h
diff --git a/third_party/WebKit/Source/core/loader/DocumentLoader.h b/third_party/WebKit/Source/core/loader/DocumentLoader.h
index 126c313619e1a4eb7b8534925fdcd31b824a1317..163a511d678bdb03c27163a451eef35870cf4dbc 100644
--- a/third_party/WebKit/Source/core/loader/DocumentLoader.h
+++ b/third_party/WebKit/Source/core/loader/DocumentLoader.h
@@ -174,10 +174,12 @@
 
     void prepareSubframeArchiveLoadIfNeeded();
 
+    void willSendRequest(ResourceRequest&, const ResourceResponse&);
     void finishedLoading(double finishTime);
     void mainReceivedError(const ResourceError&);
     void cancelLoadAfterXFrameOptionsOrCSPDenied(const ResourceResponse&);
     void redirectReceived(Resource*, ResourceRequest&, const ResourceResponse&) final;
+    void updateRequest(Resource*, const ResourceRequest&) final;
     void responseReceived(Resource*, const ResourceResponse&, PassOwnPtr<WebDataConsumerHandle>) final;
     void dataReceived(Resource*, const char* data, unsigned length) final;
     void processData(const char* data, unsigned length);
@@ -230,6 +232,7 @@
     InitialScrollState m_initialScrollState;
 
     enum State {
+        NotStarted,
         Provisional,
         Committed,
         DataReceived,