Making credit card number un-editable in Wallet mode.

chrome/browser/ui/autofill/autofill_dialog_controller_impl.cc

Index: chrome/browser/ui/autofill/autofill_dialog_controller_impl.cc
diff --git a/chrome/browser/ui/autofill/autofill_dialog_controller_impl.cc b/chrome/browser/ui/autofill/autofill_dialog_controller_impl.cc
index f4679ab0fcc76c4fd0f6734d275125ccae5baa3d..eec44189cc1179dbec0dd3d3b1de295c72dfca1f 100644
--- a/chrome/browser/ui/autofill/autofill_dialog_controller_impl.cc
+++ b/chrome/browser/ui/autofill/autofill_dialog_controller_impl.cc
@@ -761,8 +761,9 @@ void AutofillDialogControllerImpl::PrepareDetailInputsForSection(
     DialogSection section) {
   // Reset all previously entered data and stop editing |section|.
   DetailInputs* inputs = MutableRequestedFieldsForSection(section);
-  for (size_t i = 0; i < inputs->size(); ++i) {
-    (*inputs)[i].initial_value.clear();
+  for (DetailInputs::iterator it = inputs->begin(); it != inputs->end(); ++it) {
+    it->initial_value.clear();
+    it->enabled = InputIsEnabled(*it, section);
   }
   section_editing_state_[section] = false;
 
@@ -2261,6 +2262,13 @@ bool AutofillDialogControllerImpl::IsManuallyEditingAnySection() const {
   return false;
 }
 
+bool AutofillDialogControllerImpl::InputIsEnabled(const DetailInput& input,
+                                                  DialogSection section) const {
+  return !(IsPayingWithWallet() &&
+           input.type == CREDIT_CARD_NUMBER &&
+           section_editing_state_[SECTION_CC_BILLING]);
+}
+
 bool AutofillDialogControllerImpl::InputIsValid(AutofillFieldType type,
                                                 const string16& value) const {
   switch (AutofillType::GetEquivalentFieldType(type)) {