Executed HTTPS upgrade before notifying the start of the provisional load.

third_party/WebKit/Source/core/fetch/FetchContext.h

Index: third_party/WebKit/Source/core/fetch/FetchContext.h
diff --git a/third_party/WebKit/Source/core/fetch/FetchContext.h b/third_party/WebKit/Source/core/fetch/FetchContext.h
index d4b54554edee8910f355e99a8c7ce3bf394d48e8..7a8400fe3c07d2b0b3b732a8b7f9f8a09847cac2 100644
--- a/third_party/WebKit/Source/core/fetch/FetchContext.h
+++ b/third_party/WebKit/Source/core/fetch/FetchContext.h
@@ -104,7 +104,7 @@ public:
     virtual void sendImagePing(const KURL&);
     virtual void addConsoleMessage(const String&) const;
     virtual SecurityOrigin* getSecurityOrigin() const { return nullptr; }
-    virtual void upgradeInsecureRequest(FetchRequest&);
+    virtual void upgradeInsecureRequest(ResourceRequest&);
     virtual void addClientHintsIfNecessary(FetchRequest&);
     virtual void addCSPHeaderIfNecessary(Resource::Type, FetchRequest&);