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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(uint64 position,
     33                                               uint64 size) {
     34   DCHECK(next_handler_.get());
     35   return next_handler_->OnUploadProgress(position, size);
     36 }
     37 
     38 bool LayeredResourceHandler::OnRequestRedirected(
     39     const net::RedirectInfo& redirect_info,
     40     ResourceResponse* response,
     41     bool* defer) {
     42   DCHECK(next_handler_.get());
     43   return next_handler_->OnRequestRedirected(redirect_info, response, defer);
     44 }
     45 
     46 bool LayeredResourceHandler::OnResponseStarted(ResourceResponse* response,
     47                                                bool* defer) {
     48   DCHECK(next_handler_.get());
     49   return next_handler_->OnResponseStarted(response, defer);
     50 }
     51 
     52 bool LayeredResourceHandler::OnWillStart(const GURL& url,
     53                                          bool* defer) {
     54   DCHECK(next_handler_.get());
     55   return next_handler_->OnWillStart(url, defer);
     56 }
     57 
     58 bool LayeredResourceHandler::OnBeforeNetworkStart(const GURL& url,
     59                                                   bool* defer) {
     60   DCHECK(next_handler_.get());
     61   return next_handler_->OnBeforeNetworkStart(url, defer);
     62 }
     63 
     64 bool LayeredResourceHandler::OnWillRead(scoped_refptr<net::IOBuffer>* buf,
     65                                         int* buf_size,
     66                                         int min_size) {
     67   DCHECK(next_handler_.get());
     68   return next_handler_->OnWillRead(buf, buf_size, min_size);
     69 }
     70 
     71 bool LayeredResourceHandler::OnReadCompleted(int bytes_read, bool* defer) {
     72   DCHECK(next_handler_.get());
     73   return next_handler_->OnReadCompleted(bytes_read, defer);
     74 }
     75 
     76 void LayeredResourceHandler::OnResponseCompleted(
     77     const net::URLRequestStatus& status,
     78     const std::string& security_info,
     79     bool* defer) {
     80   DCHECK(next_handler_.get());
     81   next_handler_->OnResponseCompleted(status, security_info, defer);
     82 }
     83 
     84 void LayeredResourceHandler::OnDataDownloaded(int bytes_downloaded) {
     85   DCHECK(next_handler_.get());
     86   next_handler_->OnDataDownloaded(bytes_downloaded);
     87 }
     88 
     89 }  // namespace content
     90