mac: Don't show "Access Address Book" prompt if Autofill is disabled.

components/autofill/core/browser/autofill_manager.h

 // Copyright 2013 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.
 
 #ifndef COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_MANAGER_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_MANAGER_H_
 
 #include <list>
 #include <map>
 #include <string>
@@ skipping 219 matching lines @@
                               size_t* variant,
                               bool* is_credit_card) const WARN_UNUSED_RESULT;
 
   // Fills |form_structure| cached element corresponding to |form|.
   // Returns false if the cached element was not found.
   bool FindCachedForm(const FormData& form,
                       FormStructure** form_structure) const WARN_UNUSED_RESULT;
 
   // Fills |form_structure| and |autofill_field| with the cached elements
   // corresponding to |form| and |field|.  This might have the side-effect of
-  // updating the cache.  Returns false if the |form| is not autofillable, or if
-  // it is not already present in the cache and the cache is full.
+  // updating the cache.  Returns false if the |form| has no autofillable
+  // fields, or if it is not already present in the cache and the cache is
+  // full.
   bool GetCachedFormAndField(const FormData& form,
                              const FormFieldData& field,
                              FormStructure** form_structure,
                              AutofillField** autofill_field) WARN_UNUSED_RESULT;
 
   // Re-parses |live_form| and adds the result to |form_structures_|.
   // |cached_form| should be a pointer to the existing version of the form, or
   // NULL if no cached version exists.  The updated form is then written into
   // |updated_form|.  Returns false if the cache could not be updated.
   bool UpdateCachedForm(const FormData& live_form,
@@ skipping 120 matching lines @@
                            UserHappinessFormLoadAndSubmission);
   FRIEND_TEST_ALL_PREFIXES(AutofillMetricsTest, UserHappinessFormInteraction);
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest,
                            FormSubmittedAutocompleteEnabled);
   DISALLOW_COPY_AND_ASSIGN(AutofillManager);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_MANAGER_H_