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

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

Index: third_party/WebKit/Source/core/loader/DocumentLoader.cpp
diff --git a/third_party/WebKit/Source/core/loader/DocumentLoader.cpp b/third_party/WebKit/Source/core/loader/DocumentLoader.cpp
index d200c0cec41b4e31a49b2535633132bcb0682ede..e219e446b0fa1e8ee29d64fdc68c206d5ac5ca75 100644
--- a/third_party/WebKit/Source/core/loader/DocumentLoader.cpp
+++ b/third_party/WebKit/Source/core/loader/DocumentLoader.cpp
@@ -624,6 +624,11 @@ bool DocumentLoader::maybeLoadEmpty()
     return true;
 }
 
+void DocumentLoader::upgradeInsecureRequest()
+{
+    fetcher()->context().upgradeInsecureRequest(m_request);
+}
+
 void DocumentLoader::startLoadingMainResource()
 {
     timing().markNavigationStart();