[Mac] Remove native/Cocoa preferences.

chrome/browser/autofill/autofill_text_field_mac.mm

Index: chrome/browser/autofill/autofill_text_field_mac.mm
diff --git a/chrome/browser/autofill/autofill_text_field_mac.mm b/chrome/browser/autofill/autofill_text_field_mac.mm
deleted file mode 100644
index 19aa2f73e91bf94133f49d920db6fa0d18668649..0000000000000000000000000000000000000000
--- a/chrome/browser/autofill/autofill_text_field_mac.mm
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import "chrome/browser/autofill/autofill_text_field_mac.h"
-
-#include "base/sys_string_conversions.h"
-#include "chrome/browser/autofill/credit_card.h"
-
-@implementation AutoFillTextField
-
-- (void)awakeFromNib {
-  // Fields tagged with this value in the nib file will be treated as credit
-  // card number fields.
-  const int kAutoFillCreditCardTag = 22;
-
-  if ([self tag] == kAutoFillCreditCardTag) {
-    isCreditCardField_ = YES;
-
-    // KVO bindings initialize fields prior to |awakeFromNib|.  In the credit
-    // card field case we need to re-initialize the value to the obfuscated
-    // version.
-    [self setObjectValue:[self objectValue]];
-  }
-}
-
-- (void)setObjectValue:(id<NSCopying>)anObject {
-  // -[NSControl setObjectValue:] says that the passed-in object has type
-  // |id<NSCopying>|, but this function needs to call the NSObject method
-  // -isKindOfClass: on the parameter. In theory, this is not correct, but this
-  // is probably a bug in the method signature.
-  NSObject<NSCopying>* object = static_cast<NSObject<NSCopying>*>(anObject);
-  if (isCreditCardField_ &&
-      [object isKindOfClass:[NSString class]]) {
-    // Obfuscate the number.
-    NSString* string = static_cast<NSString*>(object);
-    CreditCard card;
-    card.SetInfo(AutofillType(CREDIT_CARD_NUMBER),
-                 base::SysNSStringToUTF16(string));
-    NSString* starredString = base::SysUTF16ToNSString(card.ObfuscatedNumber());
-
-    [super setObjectValue:starredString];
-    isObfuscated_ = YES;
-    obfuscatedValue_.reset([string copy]);
-  } else {
-    [super setObjectValue:object];
-  }
-}
-
-- (id)objectValue {
-  if (isObfuscated_) {
-    // This should not happen. This field is bound, and its value will only be
-    // fetched if it is changed, and since we force selection, that should clear
-    // the obfuscation. Nevertheless, we'll be paranoid here since we don't want
-    // the obfuscating ***s to end up in the database.
-    NOTREACHED();
-    return obfuscatedValue_.get();
-  } else {
-    return [super objectValue];
-  }
-}
-
-// |self| is automatically set to be the delegate of the field editor; this
-// method is called by the field editor.
-- (void)textViewDidChangeSelection:(NSNotification *)notification {
-  if (isCreditCardField_ && !isBeingSelected_ && isObfuscated_) {
-    // Can't edit obfuscated credit card info; force a select-all in that case.
-    isBeingSelected_ = YES;
-    NSText* editor = [notification object];
-    [editor selectAll:self];
-    isBeingSelected_ = NO;
-  }
-}
-
-// Docs aren't clear, but this is called on the first keypress, not when the
-// field takes focus.
-- (BOOL)textShouldBeginEditing:(NSText*)textObject {
-  BOOL should = [super textShouldBeginEditing:textObject];
-  // On editing, since everything is selected, the field is now clear.
-  isObfuscated_ = !should;
-  if (!isObfuscated_)
-    obfuscatedValue_.reset();
-  return should;
-}
-
-@end