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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "content/browser/loader/layered_resource_handler.h"
      6 
      7 #include "base/logging.h"
      8 
      9 namespace content {
     10 
     11 LayeredResourceHandler::LayeredResourceHandler(
     12     scoped_ptr<ResourceHandler> next_handler)
     13     : next_handler_(next_handler.Pass()) {
     14 }
     15 
     16 LayeredResourceHandler::~LayeredResourceHandler() {
     17 }
     18 
     19 void LayeredResourceHandler::SetController(ResourceController* controller) {
     20   ResourceHandler::SetController(controller);
     21 
     22   // Pass the controller down to the next handler.  This method is intended to
     23   // be overriden by subclasses of LayeredResourceHandler that need to insert a
     24   // different ResourceController.
     25 
     26   DCHECK(next_handler_.get());
     27   next_handler_->SetController(controller);
     28 }
     29 
     30 bool LayeredResourceHandler::OnUploadProgress(int request_id, uint64 position,
     31                                               uint64 size) {
     32   DCHECK(next_handler_.get());
     33   return next_handler_->OnUploadProgress(request_id, position, size);
     34 }
     35 
     36 bool LayeredResourceHandler::OnRequestRedirected(int request_id,
     37                                                  const GURL& url,
     38                                                  ResourceResponse* response,
     39                                                  bool* defer) {
     40   DCHECK(next_handler_.get());
     41   return next_handler_->OnRequestRedirected(request_id, url, response, defer);
     42 }
     43 
     44 bool LayeredResourceHandler::OnResponseStarted(int request_id,
     45                                                ResourceResponse* response,
     46                                                bool* defer) {
     47   DCHECK(next_handler_.get());
     48   return next_handler_->OnResponseStarted(request_id, response, defer);
     49 }
     50 
     51 bool LayeredResourceHandler::OnWillStart(int request_id, const GURL& url,
     52                                          bool* defer) {
     53   DCHECK(next_handler_.get());
     54   return next_handler_->OnWillStart(request_id, url, defer);
     55 }
     56 
     57 bool LayeredResourceHandler::OnWillRead(int request_id, net::IOBuffer** buf,
     58                                         int* buf_size, int min_size) {
     59   DCHECK(next_handler_.get());
     60   return next_handler_->OnWillRead(request_id, buf, buf_size, min_size);
     61 }
     62 
     63 bool LayeredResourceHandler::OnReadCompleted(int request_id, int bytes_read,
     64                                              bool* defer) {
     65   DCHECK(next_handler_.get());
     66   return next_handler_->OnReadCompleted(request_id, bytes_read, defer);
     67 }
     68 
     69 bool LayeredResourceHandler::OnResponseCompleted(
     70     int request_id,
     71     const net::URLRequestStatus& status,
     72     const std::string& security_info) {
     73   DCHECK(next_handler_.get());
     74   return next_handler_->OnResponseCompleted(request_id, status, security_info);
     75 }
     76 
     77 void LayeredResourceHandler::OnDataDownloaded(int request_id,
     78                                               int bytes_downloaded) {
     79   DCHECK(next_handler_.get());
     80   next_handler_->OnDataDownloaded(request_id, bytes_downloaded);
     81 }
     82 
     83 }  // namespace content
     84