Replaces gender specific terms from comments in ppapi/cpp/...

ppapi/cpp/var.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 PPAPI_CPP_VAR_H_
 #define PPAPI_CPP_VAR_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 297 matching lines @@
 
  protected:
   PP_Var var_;
 
   // |is_managed_| indicates if the instance manages |var_|.
   // You need to check if |var_| is refcounted to call Release().
   bool is_managed_;
 
  private:
   // Prevent an arbitrary pointer argument from being implicitly converted to
-  // a bool at Var construction. If somebody makes such a mistake, (s)he will
+  // a bool at Var construction. If somebody makes such a mistake, they will
   // get a compilation error.
   Var(void* non_scriptable_object_pointer);
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_VAR_H_