[chromoting] Fix crash when generating access code

remoting/host/desktop_environment.h

Index: remoting/host/desktop_environment.h
diff --git a/remoting/host/desktop_environment.h b/remoting/host/desktop_environment.h
index d3058e0bce0ed1d84e994c4b76d039a9151024bd..237f94b62d569c074035d7421bd7daff54241473 100644
--- a/remoting/host/desktop_environment.h
+++ b/remoting/host/desktop_environment.h
@@ -25,7 +25,14 @@ class HostEventStub;
 
 class DesktopEnvironment {
  public:
-  static scoped_ptr<DesktopEnvironment> Create(ChromotingHostContext* context);
+  // Creates a DesktopEnvironment used in a host plugin.
+  static scoped_ptr<DesktopEnvironment> Create(
+      ChromotingHostContext* context);
+
+  // Creates a DesktopEnvironment used in a service process.
+  static scoped_ptr<DesktopEnvironment> CreateForService(
+      ChromotingHostContext* context);
+
   static scoped_ptr<DesktopEnvironment> CreateFake(
       ChromotingHostContext* context,
       scoped_ptr<Capturer> capturer,