Add an experimental flag to change location.reload to take a hard-reload

third_party/WebKit/Source/core/frame/Location.cpp

 /*
  * Copyright (C) 2008, 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 20 matching lines @@
 #include "bindings/core/v8/BindingSecurity.h"
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/V8DOMActivityLogger.h"
 #include "core/dom/DOMURLUtilsReadOnly.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/frame/DOMWindow.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
 #include "core/loader/FrameLoader.h"
+#include "platform/RuntimeEnabledFeatures.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/SecurityOrigin.h"
 
 namespace blink {
 
 Location::Location(DOMWindow* dom_window) : dom_window_(dom_window) {}
 
 DEFINE_TRACE(Location) {
   visitor->Trace(dom_window_);
 }
@@ skipping 168 matching lines @@
                        ExceptionState& exception_state) {
   SetLocation(url, current_window, entered_window, &exception_state,
               SetLocationPolicy::kReplaceThisFrame);
 }
 
 void Location::reload(LocalDOMWindow* current_window) {
   if (!IsAttached())
     return;
   if (GetDocument()->Url().ProtocolIsJavaScript())
     return;
-  dom_window_->GetFrame()->Reload(kFrameLoadTypeReload,
-                                  ClientRedirectPolicy::kClientRedirect);
+  dom_window_->GetFrame()->Reload(
+      RuntimeEnabledFeatures::locationHardReloadEnabled()
+          ? kFrameLoadTypeReloadBypassingCache
+          : kFrameLoadTypeReload,
+      ClientRedirectPolicy::kClientRedirect);
 }
 
 void Location::SetLocation(const String& url,
                            LocalDOMWindow* current_window,
                            LocalDOMWindow* entered_window,
                            ExceptionState* exception_state,
                            SetLocationPolicy set_location_policy) {
   if (!IsAttached())
     return;
 
@@ skipping 44 matching lines @@
 
 Document* Location::GetDocument() const {
   return ToLocalDOMWindow(dom_window_)->document();
 }
 
 bool Location::IsAttached() const {
   return dom_window_->GetFrame();
 }
 
 }  // namespace blink