Implement the feedbackPrivate API.

chrome/browser/extensions/api/feedback_private/blob_reader.h

+// Copyright (c) 2013 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.
+
+#ifndef CHROME_BROWSER_EXTENSIONS_API_FEEDBACK_PRIVATE_BLOB_READER_H_
+#define CHROME_BROWSER_EXTENSIONS_API_FEEDBACK_PRIVATE_BLOB_READER_H_
+
+#include <string>
+
+#include "base/callback.h"
+#include "base/memory/scoped_ptr.h"
+#include "googleurl/src/gurl.h"
+#include "net/base/io_buffer.h"
+#include "net/url_request/url_fetcher_delegate.h"
+#include "net/url_request/url_request.h"
+
+class Profile;
+namespace net {
+class URLFetcher;
+}
+
+class BlobReader : public net::URLFetcherDelegate {
+ public:
+  typedef base::Callback<void(scoped_ptr<std::string> blob_data)>
+      BlobReadCallback;
+
+  BlobReader(Profile* profile,
+             const GURL& blob_url,
+             BlobReadCallback callback);
+  virtual ~BlobReader();
+
+  void Start();
+
+ private:
+  // Overridden from net::URLFetcherDelegate.
+  virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
+
+  BlobReadCallback callback_;
+  net::URLFetcher* fetcher_;
+
+  DISALLOW_COPY_AND_ASSIGN(BlobReader);
+};
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_FEEDBACK_PRIVATE_BLOB_READER_H_