ObserverList::HasObserver now takes a const pointer.

chromeos/dbus/session_manager_client.cc

 // Copyright (c) 2012 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.
 
 #include "chromeos/dbus/session_manager_client.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
@@ skipping 66 matching lines @@
   }
 
   virtual void AddObserver(Observer* observer) override {
     observers_.AddObserver(observer);
   }
 
   virtual void RemoveObserver(Observer* observer) override {
     observers_.RemoveObserver(observer);
   }
 
-  virtual bool HasObserver(Observer* observer) override {
+  virtual bool HasObserver(const Observer* observer) const override {
     return observers_.HasObserver(observer);
   }
 
   virtual void EmitLoginPromptVisible() override {
     SimpleMethodCallToSessionManager(
         login_manager::kSessionManagerEmitLoginPromptVisible);
     FOR_EACH_OBSERVER(Observer, observers_, EmitLoginPromptVisibleCalled());
   }
 
   virtual void RestartJob(int pid, const std::string& command_line) override {
@@ skipping 478 matching lines @@
   virtual void Init(dbus::Bus* bus) override {}
   virtual void SetStubDelegate(StubDelegate* delegate) override {
     delegate_ = delegate;
   }
   virtual void AddObserver(Observer* observer) override {
     observers_.AddObserver(observer);
   }
   virtual void RemoveObserver(Observer* observer) override {
     observers_.RemoveObserver(observer);
   }
-  virtual bool HasObserver(Observer* observer) override {
+  virtual bool HasObserver(const Observer* observer) const override {
     return observers_.HasObserver(observer);
   }
   virtual void EmitLoginPromptVisible() override {}
   virtual void RestartJob(int pid, const std::string& command_line) override {}
   virtual void StartSession(const std::string& user_email) override {}
   virtual void StopSession() override {}
   virtual void StartDeviceWipe() override {}
   virtual void RequestLockScreen() override {
     if (delegate_)
       delegate_->LockScreenForStub();
@@ skipping 135 matching lines @@
 
 SessionManagerClient* SessionManagerClient::Create(
     DBusClientImplementationType type) {
   if (type == REAL_DBUS_CLIENT_IMPLEMENTATION)
     return new SessionManagerClientImpl();
   DCHECK_EQ(STUB_DBUS_CLIENT_IMPLEMENTATION, type);
   return new SessionManagerClientStubImpl();
 }
 
 }  // namespace chromeos