webapk: Avoid overwriting default CreationParams

content/browser/child_process_launcher.h

 // 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.
 
 #ifndef CONTENT_BROWSER_CHILD_PROCESS_LAUNCHER_H_
 #define CONTENT_BROWSER_CHILD_PROCESS_LAUNCHER_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 48 matching lines @@
     // Will be called on the thread that the ChildProcessLauncher was
     // constructed on.
     virtual void OnProcessLaunched() = 0;
 
     virtual void OnProcessLaunchFailed(int error_code) {};
 
    protected:
     virtual ~Client() {}
   };
 
+  enum { DEFAULT_PARAM_ID = 0 };
+
   // Launches the process asynchronously, calling the client when the result is
   // ready.  Deleting this object before the process is created is safe, since
   // the callback won't be called.  If the process is still running by the time
   // this object destructs, it will be terminated.
   // Takes ownership of cmd_line.
   //
   // If |process_error_callback| is provided, it will be called if a Mojo error
   // is encountered when processing messages from the child process. This
   // callback must be safe to call from any thread.
   ChildProcessLauncher(
       std::unique_ptr<SandboxedProcessLauncherDelegate> delegate,
       std::unique_ptr<base::CommandLine> cmd_line,
       int child_process_id,
       Client* client,
       std::unique_ptr<mojo::edk::PendingProcessConnection> pending_connection,
       const mojo::edk::ProcessErrorCallback& process_error_callback,
-      bool terminate_on_shutdown = true);
+      bool terminate_on_shutdown = true,
+      int param_id = DEFAULT_PARAM_ID);
   ~ChildProcessLauncher();
 
   // True if the process is being launched and so the handle isn't available.
   bool IsStarting();
 
   // Getter for the process.  Only call after the process has started.
   const base::Process& GetProcess() const;
 
   // Call this when the child process exits to know what happened to it.
   // |known_dead| can be true if we already know the process is dead as it can
@@ skipping 70 matching lines @@
   scoped_refptr<internal::ChildProcessLauncherHelper> helper_;
 
   base::WeakPtrFactory<ChildProcessLauncher> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildProcessLauncher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_CHILD_PROCESS_LAUNCHER_H_