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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 #ifndef WEBKIT_BROWSER_BLOB_VIEW_BLOB_INTERNALS_JOB_H_
      6 #define WEBKIT_BROWSER_BLOB_VIEW_BLOB_INTERNALS_JOB_H_
      7 
      8 #include <string>
      9 
     10 #include "base/memory/weak_ptr.h"
     11 #include "net/url_request/url_request_simple_job.h"
     12 #include "webkit/browser/webkit_storage_browser_export.h"
     13 
     14 namespace net {
     15 class URLRequest;
     16 }  // namespace net
     17 
     18 namespace webkit_blob {
     19 
     20 class BlobData;
     21 class BlobStorageController;
     22 
     23 // A job subclass that implements a protocol to inspect the internal
     24 // state of blob registry.
     25 class WEBKIT_STORAGE_BROWSER_EXPORT ViewBlobInternalsJob
     26     : public net::URLRequestSimpleJob {
     27  public:
     28   ViewBlobInternalsJob(net::URLRequest* request,
     29                        net::NetworkDelegate* network_delegate,
     30                        BlobStorageController* blob_storage_controller);
     31 
     32   virtual void Start() OVERRIDE;
     33   virtual int GetData(std::string* mime_type,
     34                       std::string* charset,
     35                       std::string* data,
     36                       const net::CompletionCallback& callback) const OVERRIDE;
     37   virtual bool IsRedirectResponse(GURL* location,
     38                                   int* http_status_code) OVERRIDE;
     39   virtual void Kill() OVERRIDE;
     40 
     41  private:
     42   virtual ~ViewBlobInternalsJob();
     43 
     44   void DoWorkAsync();
     45   void GenerateHTML(std::string* out) const;
     46   static void GenerateHTMLForBlobData(const BlobData& blob_data,
     47                                       std::string* out);
     48 
     49   BlobStorageController* blob_storage_controller_;
     50   base::WeakPtrFactory<ViewBlobInternalsJob> weak_factory_;
     51 
     52   DISALLOW_COPY_AND_ASSIGN(ViewBlobInternalsJob);
     53 };
     54 
     55 }  // namespace webkit_blob
     56 
     57 #endif  // WEBKIT_BROWSER_BLOB_VIEW_BLOB_INTERNALS_JOB_H_
     58