Take a Profile when adding an incident to the incident reporting service.

chrome/browser/safe_browsing/incident_reporting/preference_validation_delegate.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_INCIDENT_REPORTING_PREFERENCE_VALIDATION_DELEGATE_H_
 #define CHROME_BROWSER_SAFE_BROWSING_INCIDENT_REPORTING_PREFERENCE_VALIDATION_DELEGATE_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/browser/prefs/tracked/tracked_preference_validation_delegate.h"
 #include "chrome/browser/safe_browsing/incident_reporting/add_incident_callback.h"
 
+class Profile;
+
 namespace safe_browsing {
 
 // A preference validation delegate that adds incidents to a given receiver
-// for preference validation failures.
+// for preference validation failures. The profile for which the delegate
+// operates must outlive the delegate itself.
 class PreferenceValidationDelegate
     : public TrackedPreferenceValidationDelegate {
  public:
-  explicit PreferenceValidationDelegate(
-      const AddIncidentCallback& add_incident);
+  PreferenceValidationDelegate(Profile* profile,
+                               const AddIncidentCallback& add_incident);
   ~PreferenceValidationDelegate() override;
 
  private:
   // TrackedPreferenceValidationDelegate methods.
   void OnAtomicPreferenceValidation(
       const std::string& pref_path,
       const base::Value* value,
       PrefHashStoreTransaction::ValueState value_state,
       bool is_personal) override;
   void OnSplitPreferenceValidation(
       const std::string& pref_path,
       const base::DictionaryValue* dict_value,
       const std::vector<std::string>& invalid_keys,
       PrefHashStoreTransaction::ValueState value_state,
       bool is_personal) override;
 
+  Profile* profile_;
   AddIncidentCallback add_incident_;
 
   DISALLOW_COPY_AND_ASSIGN(PreferenceValidationDelegate);
 };
 
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_INCIDENT_REPORTING_PREFERENCE_VALIDATION_DELEGATE_H_