Remove base::WaitForSingleProcess

base/process/process.h

 // Copyright (c) 2011 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 BASE_PROCESS_PROCESS_PROCESS_H_
 #define BASE_PROCESS_PROCESS_PROCESS_H_
 
 #include "base/base_export.h"
 #include "base/basictypes.h"
 #include "base/move.h"
@@ skipping 80 matching lines @@
   // Close the process handle. This will not terminate the process.
   void Close();
 
   // Terminates the process with extreme prejudice. The given |result_code| will
   // be the exit code of the process.
   // NOTE: On POSIX |result_code| is ignored.
   void Terminate(int result_code);
 
   // Waits for the process to exit. Returns true on success.
   // On POSIX, if the process has been signaled then |exit_code| is set to -1.
+  // On Linux this must be a child process, however on Mac and Windows it can be
+  // any process.
   bool WaitForExit(int* exit_code);
 
   // Same as WaitForExit() but only waits for up to |timeout|.
   bool WaitForExitWithTimeout(TimeDelta timeout, int* exit_code);
 
   // A process is backgrounded when it's priority is lower than normal.
   // Return true if this process is backgrounded, false otherwise.
   bool IsProcessBackgrounded() const;
 
   // Set a process as backgrounded. If value is true, the priority of the
@@ skipping 11 matching lines @@
   bool is_current_process_;
   win::ScopedHandle process_;
 #else
   ProcessHandle process_;
 #endif
 };
 
 }  // namespace base
 
 #endif  // BASE_PROCESS_PROCESS_PROCESS_H_