IPC fuzzer child process component

base/command_line.h

Index: base/command_line.h
diff --git a/base/command_line.h b/base/command_line.h
index ed46c4f0d13c34778d390e86827b8e6db307d186..59f063752de6ab1a84ca8974525344f937db749f 100644
--- a/base/command_line.h
+++ b/base/command_line.h
@@ -123,7 +123,11 @@ class BASE_EXPORT CommandLine {
   void AppendSwitchASCII(const std::string& switch_string,
                          const std::string& value);
 
-  // Copy a set of switches (and any values) from another command line.
+  // Copy a switch (and a value, if any) from another command line.
+  void CopySwitchFrom(const CommandLine& source,
+                      const char* switch_name);
+
+  // Same as CopySwitchFrom, but for multiple switches.
   // Commonly used when launching a subprocess.
   void CopySwitchesFrom(const CommandLine& source,
                         const char* const switches[],