Convert a bunch of easy AppendSwitchWithValue to *ASCII.

chrome/test/plugin/plugin_test.cpp

Index: chrome/test/plugin/plugin_test.cpp
diff --git a/chrome/test/plugin/plugin_test.cpp b/chrome/test/plugin/plugin_test.cpp
index 80643b7c380c3e1d461120bea91c7d751e367fbd..e047121d0db80703cdb0633abaddba6037e42651 100644
--- a/chrome/test/plugin/plugin_test.cpp
+++ b/chrome/test/plugin/plugin_test.cpp
@@ -64,8 +64,8 @@ class PluginTest : public UITest {
       // the new plugin.
       launch_arguments_.AppendSwitch(kUseOldWMPPluginSwitch);
     } else if (strcmp(test_info->name(), "FlashSecurity") == 0) {
-      launch_arguments_.AppendSwitchWithValue(switches::kTestSandbox,
-                                              "security_tests.dll");
+      launch_arguments_.AppendSwitchASCII(switches::kTestSandbox,
+                                          "security_tests.dll");
     }
 
     UITest::SetUp();