WIP Component build of autofill

components/autofill/common/autofill_switches.h

Index: components/autofill/common/autofill_switches.h
diff --git a/components/autofill/common/autofill_switches.h b/components/autofill/common/autofill_switches.h
index 76b858b324c7f8bdbdff4bc0b39a5858300022f8..d1d248c47f047be9f8692cbd255da5d9c70f7c31 100644
--- a/components/autofill/common/autofill_switches.h
+++ b/components/autofill/common/autofill_switches.h
@@ -5,6 +5,8 @@
 #ifndef COMPONENTS_AUTOFILL_COMMON_AUTOFILL_SWITCHES_H_
 #define COMPONENTS_AUTOFILL_COMMON_AUTOFILL_SWITCHES_H_
 
+#include "components/autofill/common/autofill_export.h"
+
 namespace autofill {
 namespace switches {
 
@@ -12,11 +14,11 @@ namespace switches {
 // alongside the definition of their values in the .cc file.
 extern const char kAutofillServiceUrl[];
 extern const char kBypassAutocheckoutWhitelist[];
-extern const char kEnableExperimentalFormFilling[];
-extern const char kShowAutofillTypePredictions[];
+AUTOFILL_EXPORT extern const char kEnableExperimentalFormFilling[];
+AUTOFILL_EXPORT extern const char kShowAutofillTypePredictions[];
 extern const char kWalletSecureServiceUrl[];
 extern const char kWalletServiceUrl[];
-extern const char kWalletServiceUseProd[];
+AUTOFILL_EXPORT extern const char kWalletServiceUseProd[];
 
 }  // namespace switches
 }  // namespace autofill