Remove Autofill support for the ECML standard, as it is virtually unused.

chrome/browser/autofill/phone_field.h

Index: chrome/browser/autofill/phone_field.h
diff --git a/chrome/browser/autofill/phone_field.h b/chrome/browser/autofill/phone_field.h
index 947178c271c682167dde0d866f502eee69229917..65c2d7363abd04e68da6ffb82b7395395137be27 100644
--- a/chrome/browser/autofill/phone_field.h
+++ b/chrome/browser/autofill/phone_field.h
@@ -25,8 +25,7 @@ class PhoneField : public FormField {
  public:
   virtual ~PhoneField();
 
-  static FormField* Parse(AutofillScanner* scanner, bool is_ecml);
-  static FormField* ParseECML(AutofillScanner* scanner);
+  static FormField* Parse(AutofillScanner* scanner);
 
  protected:
   // FormField:
@@ -34,10 +33,7 @@ class PhoneField : public FormField {
 
  private:
   FRIEND_TEST_ALL_PREFIXES(PhoneFieldTest, ParseOneLinePhone);
-  FRIEND_TEST_ALL_PREFIXES(PhoneFieldTest, ParseOneLinePhoneEcml);
   FRIEND_TEST_ALL_PREFIXES(PhoneFieldTest, ParseTwoLinePhone);
-  FRIEND_TEST_ALL_PREFIXES(PhoneFieldTest, ParseTwoLinePhoneEcmlShipTo);
-  FRIEND_TEST_ALL_PREFIXES(PhoneFieldTest, ParseTwoLinePhoneEcmlBillTo);
   FRIEND_TEST_ALL_PREFIXES(PhoneFieldTest, ThreePartPhoneNumber);
   FRIEND_TEST_ALL_PREFIXES(PhoneFieldTest, ThreePartPhoneNumberPrefixSuffix);
   FRIEND_TEST_ALL_PREFIXES(PhoneFieldTest, ThreePartPhoneNumberPrefixSuffix2);