Merge ResourceRequestBodyImpl and ResourceRequestBody.

content/browser/loader/navigation_resource_throttle.cc

 // Copyright 2015 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 "content/browser/loader/navigation_resource_throttle.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 75 matching lines @@
     return nullptr;
   }
   return navigation_handle;
 }
 
 void CheckWillStartRequestOnUIThread(
     UIChecksPerformedCallback callback,
     int render_process_id,
     int render_frame_host_id,
     const std::string& method,
-    const scoped_refptr<content::ResourceRequestBodyImpl>&
-        resource_request_body,
+    const scoped_refptr<content::ResourceRequestBody>& resource_request_body,
     const Referrer& sanitized_referrer,
     bool has_user_gesture,
     ui::PageTransition transition,
     bool is_external_protocol,
     RequestContextType request_context_type,
     blink::WebMixedContentContextType mixed_content_context_type) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   NavigationHandleImpl* navigation_handle =
       FindNavigationHandle(render_process_id, render_frame_host_id, callback);
   if (!navigation_handle)
@@ skipping 282 matching lines @@
 
   // If the results of the checks on the UI thread are known, unblock the
   // navigation. Otherwise, wait until the callback has executed.
   if (on_transfer_done_result_ != NavigationThrottle::DEFER) {
     OnUIChecksPerformed(on_transfer_done_result_);
     on_transfer_done_result_ = NavigationThrottle::DEFER;
   }
 }
 
 }  // namespace content