Three way experiment for "Show saved copy" button.

chrome/renderer/net/net_error_page_controller.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/net/net_error_page_controller.h"
 
 #include "base/strings/string_piece.h"
 #include "chrome/renderer/net/net_error_helper.h"
 #include "content/public/renderer/render_frame.h"
 #include "gin/handle.h"
@@ skipping 18 matching lines @@
   gin::Handle<NetErrorPageController> controller = gin::CreateHandle(
       isolate, new NetErrorPageController(render_frame));
   if (controller.IsEmpty())
     return;
 
   v8::Handle<v8::Object> global = context->Global();
   global->Set(gin::StringToV8(isolate, "errorPageController"),
               controller.ToV8());
 }
 
-bool NetErrorPageController::LoadStaleButtonClick() {
+bool NetErrorPageController::ShowSavedCopyButtonClick() {
   if (!render_frame())
     return false;
 
   NetErrorHelper* net_error_helper =
       content::RenderFrameObserverTracker<NetErrorHelper>::Get(render_frame());
   DCHECK(net_error_helper);
-  net_error_helper->LoadStaleButtonPressed();
+  net_error_helper->ShowSavedCopyButtonPressed();
 
   return true;
 }
 
 bool NetErrorPageController::ReloadButtonClick() {
   if (!render_frame())
     return false;
 
   NetErrorHelper* net_error_helper =
       content::RenderFrameObserverTracker<NetErrorHelper>::Get(render_frame());
@@ skipping 31 matching lines @@
 
 NetErrorPageController::NetErrorPageController(
     content::RenderFrame* render_frame) : RenderFrameObserver(render_frame) {}
 
 NetErrorPageController::~NetErrorPageController() {}
 
 gin::ObjectTemplateBuilder NetErrorPageController::GetObjectTemplateBuilder(
     v8::Isolate* isolate) {
   return gin::Wrappable<NetErrorPageController>::GetObjectTemplateBuilder(
              isolate)
-      .SetMethod("loadStaleButtonClick",
-                 &NetErrorPageController::LoadStaleButtonClick)
+      .SetMethod("showSavedCopyButtonClick",
+                 &NetErrorPageController::ShowSavedCopyButtonClick)
       .SetMethod("reloadButtonClick",
                  &NetErrorPageController::ReloadButtonClick)
       .SetMethod("detailsButtonClick",
                  &NetErrorPageController::DetailsButtonClick)
       .SetMethod("trackClick",
                  &NetErrorPageController::TrackClick);
 }
 
 void NetErrorPageController::OnDestruct() {}