Make full-form autofill the only implementation on iOS.

components/autofill/ios/browser/resources/autofill_controller.js

Index: components/autofill/ios/browser/resources/autofill_controller.js
diff --git a/components/autofill/ios/browser/resources/autofill_controller.js b/components/autofill/ios/browser/resources/autofill_controller.js
index a7600892fa6d0394b88247802fac467d54d448f2..50ec7364308aab36833cf0837bca65b00033b450 100644
--- a/components/autofill/ios/browser/resources/autofill_controller.js
+++ b/components/autofill/ios/browser/resources/autofill_controller.js
@@ -137,13 +137,6 @@ __gCrWeb.autofill.ROLE_ATTRIBUTE_PRESENTATION = 0;
 __gCrWeb.autofill.lastAutoFilledElement = null;
 
 /**
- * The last element that was active (used to restore focus if necessary).
- *
- * @type {Element}
- */
-__gCrWeb.autofill.lastActiveElement = null;
-
-/**
  * Whether CSS for autofilled elements has been injected into the page.
  *
  * @type {boolean}
@@ -556,34 +549,12 @@ __gCrWeb.autofill['extractForms'] = function(requiredFields) {
 };
 
 /**
- * Stores the current active element. This is used to make the element active
- * again in case the web view loses focus when a dialog is presented over it.
- */
-__gCrWeb.autofill['storeActiveElement'] = function() {
-  __gCrWeb.autofill.lastActiveElement = document.activeElement;
-}
-
-/**
- * Clears the current active element by setting it to null.
- */
-__gCrWeb.autofill['clearActiveElement'] = function() {
-  __gCrWeb.autofill.lastActiveElement = null;
-}
-
-/**
- * Fills data into the active form field. The active form field is either
- * document.activeElement or the value of lastActiveElement if that value is
- * non-null.
+ * Fills data into the active form field.
  *
  * @param {AutofillFormFieldData} data The data to fill in.
  */
 __gCrWeb.autofill['fillActiveFormField'] = function(data) {
   var activeElement = document.activeElement;
-  if (__gCrWeb.autofill.lastActiveElement) {
-    activeElement = __gCrWeb.autofill.lastActiveElement;
-    activeElement.focus();
-    __gCrWeb.autofill.lastActiveElement = null;
-  }
   if (data['name'] !== __gCrWeb['common'].nameForAutofill(activeElement)) {
     return;
   }