Password manager internals page: Introduce logger in renderer

components/password_manager/core/browser/password_manager_client.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 COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_MANAGER_CLIENT_H_
 #define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_MANAGER_CLIENT_H_
 
 #include "base/metrics/field_trial.h"
 #include "components/autofill/core/common/password_form.h"
 #include "components/autofill/core/common/password_form_fill_data.h"
@@ skipping 44 matching lines @@
   // Returns the probability that the experiment identified by |experiment_name|
   // should be enabled. The default implementation returns 0.
   virtual base::FieldTrial::Probability GetProbabilityForExperiment(
       const std::string& experiment_name);
 
   // Returns true if password sync is enabled in the embedder. The default
   // implementation returns false.
   virtual bool IsPasswordSyncEnabled();
 
   // Attach or detach (setting NULL) a logger for this client.
-  virtual void SetLogger(PasswordManagerLogger* logger);
+  virtual void SetLogger(PasswordManagerLogger* logger) = 0;
 
   // Send |text| to the logger.
-  virtual void LogSavePasswordProgress(const std::string& text);
+  virtual void LogSavePasswordProgress(const std::string& text) = 0;
+
+  // Returns true if logs recorded via LogSavePasswordProgress will be
+  // displayed, and false otherwise.
+  virtual bool IsLoggingActive() const = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PasswordManagerClient);
 };
 
 }  // namespace password_manager
 
 #endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_MANAGER_CLIENT_H_