[Autofill] Remove longest common prefix from field names when running heuristics.

components/autofill/core/browser/autofill_field.cc

Index: components/autofill/core/browser/autofill_field.cc
diff --git a/components/autofill/core/browser/autofill_field.cc b/components/autofill/core/browser/autofill_field.cc
index 9ef2e2b27282c3afb731a5bd91c10bba32aebc19..429ea510bc3aaebf3773f6c16d5e211b4a120d46 100644
--- a/components/autofill/core/browser/autofill_field.cc
+++ b/components/autofill/core/browser/autofill_field.cc
@@ -439,7 +439,8 @@ AutofillField::AutofillField(const FormFieldData& field,
       html_mode_(HTML_MODE_NONE),
       phone_part_(IGNORED),
       credit_card_number_offset_(0),
-      previously_autofilled_(false) {}
+      previously_autofilled_(false),
+      parseable_name_(field.name) {}
 
 AutofillField::~AutofillField() {}