Begin abstracting sending of IPC from autofill core code.

components/autofill/core/browser/autofill_common_test.h

Index: components/autofill/core/browser/autofill_common_test.h
diff --git a/components/autofill/core/browser/autofill_common_test.h b/components/autofill/core/browser/autofill_common_test.h
index 3f0ca5fd286b47d3e9b96106373c7297eb2a9463..b0818f70df7ffff3268dbd120cd2649ab2798720 100644
--- a/components/autofill/core/browser/autofill_common_test.h
+++ b/components/autofill/core/browser/autofill_common_test.h
@@ -13,6 +13,7 @@ namespace autofill {
 
 class AutofillProfile;
 class CreditCard;
+struct FormData;
 struct FormFieldData;
 
 // Common utilities shared amongst Autofill tests.
@@ -25,6 +26,11 @@ void CreateTestFormField(const char* label,
                          const char* type,
                          FormFieldData* field);
 
+// Populates |form| with data corresponding to a simple address form.
+// Note that this actually appends fields to the form data, which can be useful
+// for building up more complex test forms.
+void CreateTestAddressFormData(FormData* form);
+
 // Returns a profile full of dummy info.
 AutofillProfile GetFullProfile();