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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     net::URLRequest* request,
     13     scoped_ptr<ResourceHandler> next_handler)
     14     : ResourceHandler(request),
     15       next_handler_(next_handler.Pass()) {
     16 }
     17 
     18 LayeredResourceHandler::~LayeredResourceHandler() {
     19 }
     20 
     21 void LayeredResourceHandler::SetController(ResourceController* controller) {
     22   ResourceHandler::SetController(controller);
     23 
     24   // Pass the controller down to the next handler.  This method is intended to
     25   // be overriden by subclasses of LayeredResourceHandler that need to insert a
     26   // different ResourceController.
     27 
     28   DCHECK(next_handler_.get());
     29   next_handler_->SetController(controller);
     30 }
     31 
     32 bool LayeredResourceHandler::OnUploadProgress(int request_id, uint64 position,
     33                                               uint64 size) {
     34   DCHECK(next_handler_.get());
     35   return next_handler_->OnUploadProgress(request_id, position, size);
     36 }
     37 
     38 bool LayeredResourceHandler::OnRequestRedirected(int request_id,
     39                                                  const GURL& url,
     40                                                  ResourceResponse* response,
     41                                                  bool* defer) {
     42   DCHECK(next_handler_.get());
     43   return next_handler_->OnRequestRedirected(request_id, url, response, defer);
     44 }
     45 
     46 bool LayeredResourceHandler::OnResponseStarted(int request_id,
     47                                                ResourceResponse* response,
     48                                                bool* defer) {
     49   DCHECK(next_handler_.get());
     50   return next_handler_->OnResponseStarted(request_id, response, defer);
     51 }
     52 
     53 bool LayeredResourceHandler::OnWillStart(int request_id, const GURL& url,
     54                                          bool* defer) {
     55   DCHECK(next_handler_.get());
     56   return next_handler_->OnWillStart(request_id, url, defer);
     57 }
     58 
     59 bool LayeredResourceHandler::OnWillRead(int request_id,
     60                                         scoped_refptr<net::IOBuffer>* buf,
     61                                         int* buf_size,
     62                                         int min_size) {
     63   DCHECK(next_handler_.get());
     64   return next_handler_->OnWillRead(request_id, buf, buf_size, min_size);
     65 }
     66 
     67 bool LayeredResourceHandler::OnReadCompleted(int request_id, int bytes_read,
     68                                              bool* defer) {
     69   DCHECK(next_handler_.get());
     70   return next_handler_->OnReadCompleted(request_id, bytes_read, defer);
     71 }
     72 
     73 void LayeredResourceHandler::OnResponseCompleted(
     74     int request_id,
     75     const net::URLRequestStatus& status,
     76     const std::string& security_info,
     77     bool* defer) {
     78   DCHECK(next_handler_.get());
     79   next_handler_->OnResponseCompleted(request_id, status, security_info, defer);
     80 }
     81 
     82 void LayeredResourceHandler::OnDataDownloaded(int request_id,
     83                                               int bytes_downloaded) {
     84   DCHECK(next_handler_.get());
     85   next_handler_->OnDataDownloaded(request_id, bytes_downloaded);
     86 }
     87 
     88 }  // namespace content
     89