[rAC, OSX] Validate only enabled fields.

Un-editable fields are field by the controller with values that do not
need to be validated - skip them during validation runs.

BUG=277321
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/25830002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227189 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/cocoa/autofill/autofill_section_container.mm

@@ -338,9 +338,16 @@ - (BOOL)validateFor:(autofill::ValidationType)validationType {
   if (![inputs_ isHidden]) {
     fields = [inputs_ subviews];
   } else if (section_ == autofill::SECTION_CC) {
-    fields = @[[suggestContainer_ inputField]];
+    fields = @[ [suggestContainer_ inputField] ];
   }
 
+  // Ensure only editable fields are validated.
+  fields = [fields filteredArrayUsingPredicate:
+      [NSPredicate predicateWithBlock:
+          ^BOOL(NSControl<AutofillInputField>* field, NSDictionary* bindings) {
+              return [field isEnabled];
+          }]];
+
   autofill::DetailOutputMap detailOutputs;
   [self fillDetailOutputs:&detailOutputs fromControls:fields];
   autofill::ValidityMessages messages = delegate_->InputsAreValid(