Support Using ScopedFeatureList in BrowserTest

base/command_line.h

Index: base/command_line.h
diff --git a/base/command_line.h b/base/command_line.h
index 3d29f8fee7fbb8de9e8c1fb691515ddb8bdccbdd..883370c552c3ecdd7f7ae786ad9739121aa1f933 100644
--- a/base/command_line.h
+++ b/base/command_line.h
@@ -182,6 +182,7 @@ class BASE_EXPORT CommandLine {
                           const StringType& value);
   void AppendSwitchASCII(const std::string& switch_string,
                          const std::string& value);
+  void RemoveSwitchASCIIForTesting(const std::string& switch_string);

[Ilya Sherman, 2017/06/07 21:32:36]

nit: Please separate this from the lines above with a blank line of whitespace,
and please document this function.

[Ilya Sherman, 2017/06/07 21:32:36]

nit: Please drop "ASCII" from this name -- that refers to the value, and this
does not consider the value.

 
   // Copy a set of switches (and any values) from another command line.
   // Commonly used when launching a subprocess.