Remove is_prerender() from ChromeURLRequestUserData since it's not used anymore.

chrome/browser/renderer_host/safe_browsing_resource_throttle.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/renderer_host/safe_browsing_resource_throttle.h"
 
 #include "base/logging.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/prerender/prerender_contents.h"
-#include "chrome/browser/renderer_host/chrome_url_request_user_data.h"
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/resource_controller.h"
 #include "content/public/browser/resource_request_info.h"
 #include "content/public/browser/web_contents.h"
 #include "net/base/load_flags.h"
 #include "net/url_request/url_request.h"
 
 // Maximum time in milliseconds to wait for the safe browsing service to
@@ skipping 190 matching lines @@
   OnCheckBrowseUrlResult(url_being_checked_, SB_THREAT_TYPE_SAFE);
 }
 
 void SafeBrowsingResourceThrottle::ResumeRequest() {
   CHECK(state_ == STATE_NONE);
   CHECK(defer_state_ != DEFERRED_NONE);
 
   defer_state_ = DEFERRED_NONE;
   controller()->Resume();
 }