Implement the feedbackPrivate API.

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

+// 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.
+
+#include "chrome/browser/extensions/api/feedback_private/blob_reader.h"
+
+#include "chrome/browser/profiles/profile.h"
+#include "content/public/browser/browser_thread.h"
+#include "net/url_request/url_fetcher.h"
+#include "net/url_request/url_request_context.h"
+#include "net/url_request/url_request_context_getter.h"
+
+BlobReader::BlobReader(Profile* profile,
+                       const GURL& blob_url,
+                       BlobReadCallback callback)
+    : callback_(callback),
+      profile_(profile),
+      weak_ptr_factory_(this) {
+  fetcher_ = net::URLFetcher::Create(
+      blob_url, net::URLFetcher::GET,
+      this);
+  fetcher_->SetRequestContext(profile->GetRequestContext());
+}
+
+BlobReader::~BlobReader() {
+}
+
+void BlobReader::Start() {
+  fetcher_->Start();
+}
+
+// Overridden from net::URLFetcherDelegate.
+void BlobReader::OnURLFetchComplete(const net::URLFetcher* source) {
+  scoped_ptr<std::string> response(new std::string);
+  source->GetResponseAsString(response.get());
+  callback_.Run(response.Pass());
+
+  delete this;
+}