Revert of Enforce lowercase switches when calling CommandLine::HasSwitch(const char*).

base/command_line_unittest.cc

Index: base/command_line_unittest.cc
diff --git a/base/command_line_unittest.cc b/base/command_line_unittest.cc
index db1a0b27cb1bca5d135d9f1d5e6704da7b9482cd..e395c85677ab3f36844e9572b535e8f4d77adc90 100644
--- a/base/command_line_unittest.cc
+++ b/base/command_line_unittest.cc
@@ -60,13 +60,12 @@
             cl.GetProgram().value());
 
   EXPECT_TRUE(cl.HasSwitch("foo"));
-#if defined(OS_WIN)
-  EXPECT_TRUE(cl.HasSwitch("bar"));
-#else
-  EXPECT_FALSE(cl.HasSwitch("bar"));
-#endif
+  EXPECT_TRUE(cl.HasSwitch("bAr"));
   EXPECT_TRUE(cl.HasSwitch("baz"));
   EXPECT_TRUE(cl.HasSwitch("spaetzle"));
+#if defined(OS_WIN)
+  EXPECT_TRUE(cl.HasSwitch("SPAETZLE"));
+#endif
   EXPECT_TRUE(cl.HasSwitch("other-switches"));
   EXPECT_TRUE(cl.HasSwitch("input-translation"));
 
@@ -129,6 +128,7 @@
   EXPECT_TRUE(cl.HasSwitch("bar"));
   EXPECT_TRUE(cl.HasSwitch("baz"));
   EXPECT_TRUE(cl.HasSwitch("spaetzle"));
+  EXPECT_TRUE(cl.HasSwitch("SPAETZLE"));
   EXPECT_TRUE(cl.HasSwitch("other-switches"));
   EXPECT_TRUE(cl.HasSwitch("input-translation"));
   EXPECT_TRUE(cl.HasSwitch("quotes"));