Move ResourceResponse struct into the Content API, since it's used in Chrome. While at it, I also...

content/browser/renderer_host/resource_handler.h

 // Copyright (c) 2011 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.
 
 // This is the browser side of the resource dispatcher, it receives requests
 // from the RenderProcessHosts, and dispatches them to URLRequests. It then
 // fowards the messages from the URLRequests back to the correct process for
 // handling.
 //
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RESOURCE_HANDLER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RESOURCE_HANDLER_H_
 #pragma once
 
 #include <string>
 
 #include "content/public/browser/browser_thread.h"
 
+class GURL;
+
+namespace content {
+struct ResourceResponse;
+}
+
 namespace net {
 class IOBuffer;
 class URLRequestStatus;
 }  // namespace net
 
-struct ResourceResponse;
-class GURL;
-
 // The resource dispatcher host uses this interface to push load events to the
 // renderer, allowing for differences in the types of IPC messages generated.
 // See the implementations of this interface defined below.
 class ResourceHandler
     : public base::RefCountedThreadSafe<
             ResourceHandler, content::BrowserThread::DeleteOnIOThread> {
  public:
   // Called as upload progress is made.
   virtual bool OnUploadProgress(int request_id,
                                 uint64 position,
                                 uint64 size) = 0;
 
   // The request was redirected to a new URL.  |*defer| has an initial value of
   // false.  Set |*defer| to true to defer the redirect.  The redirect may be
   // followed later on via ResourceDispatcherHost::FollowDeferredRedirect.
   virtual bool OnRequestRedirected(int request_id, const GURL& url,
-                                   ResourceResponse* response,
+                                   content::ResourceResponse* response,
                                    bool* defer) = 0;
 
   // Response headers and meta data are available.
   virtual bool OnResponseStarted(int request_id,
-                                 ResourceResponse* response) = 0;
+                                 content::ResourceResponse* response) = 0;
 
   // Called before the net::URLRequest for |request_id| (whose url is |url|) is
   // to be started. If the handler returns false, then the request is cancelled.
   // Otherwise if the return value is true, the ResourceHandler can delay the
   // request from starting by setting |*defer = true|. A deferred request will
   // not have called net::URLRequest::Start(), and will not resume until someone
   // calls ResourceDispatcherHost::StartDeferredRequest().
   virtual bool OnWillStart(int request_id, const GURL& url, bool* defer) = 0;
 
   // Data will be read for the response.  Upon success, this method places the
@@ skipping 27 matching lines @@
   virtual void OnDataDownloaded(int request_id, int bytes_downloaded) {}
 
  protected:
   friend class content::BrowserThread;
   friend class DeleteTask<ResourceHandler>;
 
   virtual ~ResourceHandler() {}
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RESOURCE_HANDLER_H_