This adds a recovery mode to the diagnostics

chrome/browser/diagnostics/diagnostics_controller.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_DIAGNOSTICS_DIAGNOSTICS_CONTROLLER_H_
 #define CHROME_BROWSER_DIAGNOSTICS_DIAGNOSTICS_CONTROLLER_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
 
 class CommandLine;
 
 namespace diagnostics {
 
 class DiagnosticsWriter;
 class DiagnosticsModel;
 
 class DiagnosticsController {
  public:
   static DiagnosticsController* GetInstance();
 
   // Entry point for the diagnostics mode. Returns zero if able to run
   // diagnostics successfully, regardless of the results of the diagnostics.
   int Run(const CommandLine& command_line, DiagnosticsWriter* writer);
 
-  // Returns a model with the results that have accumulated.  They can then be
+  // Entry point for running recovery based on diagnostics that have already
+  // been run. In order for this to do anything, Run() must be executed first.
+  int RunRecovery(const CommandLine& command_line, DiagnosticsWriter* writer);
+
+  // Returns a model with the results that have accumulated. They can then be
   // queried for their attributes for human consumption later.
   const DiagnosticsModel& GetResults() const;
 
   // Returns true if there are any results available.
   bool HasResults();
 
   // Clears any results that have accumulated. After calling this, do not call
   // GetResults until after Run is called again.
   void ClearResults();
 
  private:
   friend struct DefaultSingletonTraits<DiagnosticsController>;
 
   DiagnosticsController();
   ~DiagnosticsController();
 
   scoped_ptr<DiagnosticsModel> model_;
   DiagnosticsWriter* writer_;
 
   DISALLOW_COPY_AND_ASSIGN(DiagnosticsController);
 };
 
 }  // namespace diagnostics
 
 #endif  // CHROME_BROWSER_DIAGNOSTICS_DIAGNOSTICS_CONTROLLER_H_