Remove unused using content::ResourceType

chrome/browser/prerender/prerender_contents.cc

 // Copyright (c) 2012 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/browser/prerender/prerender_contents.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <functional>
@@ skipping 31 matching lines @@
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/common/frame_navigate_params.h"
 #include "ui/base/page_transition_types.h"
 #include "ui/gfx/geometry/size.h"
 
 using content::BrowserThread;
 using content::OpenURLParams;
 using content::RenderViewHost;
 using content::ResourceRedirectDetails;
-using content::ResourceType;
 using content::SessionStorageNamespace;
 using content::WebContents;
 
 namespace prerender {
 
 namespace {
 
 // Valid HTTP methods for both prefetch and prerendering.
 const char* const kValidHttpMethods[] = {
     "GET", "HEAD",
@@ skipping 689 matching lines @@
 void PrerenderContents::AddResourceThrottle(
     const base::WeakPtr<PrerenderResourceThrottle>& throttle) {
   resource_throttles_.push_back(throttle);
 }
 
 void PrerenderContents::AddNetworkBytes(int64_t bytes) {
   network_bytes_ += bytes;
 }
 
 }  // namespace prerender