Make sure to not remove global error twice.

chrome/browser/safe_browsing/srt_global_error_win.h

 // Copyright 2014 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_SAFE_BROWSING_SRT_GLOBAL_ERROR_WIN_H_
 #define CHROME_BROWSER_SAFE_BROWSING_SRT_GLOBAL_ERROR_WIN_H_
 
 #include <vector>
 
 #include "base/files/file_path.h"
 #include "base/macros.h"
+#include "chrome/browser/safe_browsing/srt_field_trial_win.h"
 #include "chrome/browser/ui/global_error/global_error.h"
 
 class GlobalErrorService;
 
 namespace safe_browsing {
 
 // Encapsulates UI-related functionality for the software removal tool (SRT)
 // prompt. The UI consists of two parts: (1.) the profile reset (pop-up) bubble,
 // and (2.) a menu item in the wrench menu (provided by being a GlobalError).
 class SRTGlobalError : public GlobalErrorWithStandardBubble {
@@ skipping 30 matching lines @@
   bool ShouldCloseOnDeactivate() const override;
 
  private:
   // Executes the SRT if the executable is present.
   void MaybeExecuteSRT();
 
   // Falls back to a navigation to the download page when we failed to
   // download and execute the SRT.
   void FallbackToDownloadPage();
 
+  // Called when user interaction has started.
+  void OnUserinteractionStarted(SRTPromptHistogramValue histogram_value);
+
   // Called when user interaction is done.
   void OnUserinteractionDone();
 
   // Used to dismiss the GlobalError, then set to NULL.
   GlobalErrorService* global_error_service_;
 
   // The path to the downloaded executable.
   base::FilePath downloaded_path_;
 
   // Identifies whether the Dismiss button should be shown or not.
   bool show_dismiss_button_ = false;
 
   // Identifies whether the user interacted with the bubble buttons or not.
   bool interacted_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(SRTGlobalError);
 };
 
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_SRT_GLOBAL_ERROR_WIN_H_