Cache feedback reports to disk in case of send failure.

chrome/browser/feedback/feedback_uploader_delegate.h

 // Copyright 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_FEEDBACK_FEEDBACK_UPLOADER_DELEGATE_H_
 #define CHROME_BROWSER_FEEDBACK_FEEDBACK_UPLOADER_DELEGATE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
-#include "base/memory/scoped_ptr.h"
 #include "net/url_request/url_fetcher_delegate.h"
 
 namespace feedback {
 
-typedef base::Callback<void(scoped_ptr<std::string>)> ReportDataCallback;
+typedef base::Callback<void(const std::string&)> ReportDataCallback;
 
 // FeedbackUploaderDelegate is a simple http uploader for a feedback report. On
 // succes or failure, it deletes itself, but on failure it also notifies the
 // error callback specified when constructing the class instance.
 class FeedbackUploaderDelegate : public net::URLFetcherDelegate {
  public:
-  FeedbackUploaderDelegate(scoped_ptr<std::string> post_body,
+  FeedbackUploaderDelegate(const std::string& post_body,
                            const base::Closure& success_callback,
                            const ReportDataCallback& error_callback);
   virtual ~FeedbackUploaderDelegate();
 
  private:
   // Overridden from net::URLFetcherDelegate.
   virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
 
-  scoped_ptr<std::string> post_body_;
+  std::string post_body_;
   base::Closure success_callback_;
   ReportDataCallback error_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(FeedbackUploaderDelegate);
 };
 
 }  // namespace feedback
 
 #endif  // CHROME_BROWSER_FEEDBACK_FEEDBACK_UPLOADER_DELEGATE_H_