Introduce WebCachePolicy to merge cache policy enums

chrome/renderer/net/net_error_helper.cc

 // Copyright (c) 2013 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_helper.h"
 
 #include <string>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 297 matching lines @@
   render_frame()->GetWebFrame()->reload(ignore_cache);
 }
 
 void NetErrorHelper::LoadPageFromCache(const GURL& page_url) {
   blink::WebFrame* web_frame = render_frame()->GetWebFrame();
   DCHECK(!base::EqualsASCII(
       base::StringPiece16(web_frame->dataSource()->request().httpMethod()),
       "POST"));
 
   blink::WebURLRequest request(page_url);
-  request.setCachePolicy(blink::WebURLRequest::ReturnCacheDataDontLoad);
+  request.setCachePolicy(blink::WebCachePolicy::ReturnCacheDataDontLoad);
 
   web_frame->loadRequest(request);
 }
 
 void NetErrorHelper::DiagnoseError(const GURL& page_url) {
   render_frame()->Send(new ChromeViewHostMsg_RunNetworkDiagnostics(
       render_frame()->GetRoutingID(), page_url));
 }
 
 void NetErrorHelper::ShowOfflinePages() {
@@ skipping 45 matching lines @@
     const blink::WebURLResponse& response,
     const std::string& data) {
   tracking_fetcher_.reset();
 }
 
 #if defined(OS_ANDROID)
 void NetErrorHelper::OnSetHasOfflinePages(bool has_offline_pages) {
   core_->OnSetHasOfflinePages(has_offline_pages);
 }
 #endif  // defined(OS_ANDROID)