Display a warning when autofill is disabled for a website.

chrome/browser/renderer_host/render_view_host.cc

 // Copyright (c) 2010 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.
 
 #include "chrome/browser/renderer_host/render_view_host.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 1672 matching lines @@
 
   RenderViewHostDelegate::RendererManagement* management_delegate =
       delegate_->GetRendererManagementDelegate();
   if (management_delegate) {
     management_delegate->ShouldClosePage(
         unload_ack_is_for_cross_site_transition_, proceed);
   }
 }
 
 void RenderViewHost::OnQueryFormFieldAutoFill(
-    int query_id, bool form_autofilled, const webkit_glue::FormField& field) {
+    int query_id, bool field_autofilled, const webkit_glue::FormField& field) {
+  ResetAutoFillState(query_id);
+
+  // We first query the autofill delegate for suggestions. We keep track of the
+  // results it gives us, which we will later combine with the autocomplete
+  // suggestions.
   RenderViewHostDelegate::AutoFill* autofill_delegate =
       delegate_->GetAutoFillDelegate();
-  // We first save the AutoFill delegate's suggestions. Then we fetch the
-  // Autocomplete delegate's suggestions and send the combined results back to
-  // the render view.
-  if (autofill_delegate &&
-      autofill_delegate->GetAutoFillSuggestions(query_id,
-                                                form_autofilled,
-                                                field)) {
-  } else {
-    // No suggestions provided, so supply an empty vector as the results.
-    AutoFillSuggestionsReturned(query_id,
-                                std::vector<string16>(),
-                                std::vector<string16>(),
-                                std::vector<string16>(),
-                                std::vector<int>());
+  if (autofill_delegate) {
+    autofill_delegate->GetAutoFillSuggestions(field_autofilled, field);
   }
 
+  // Now query the Autocomplete delegate for suggestions. These will be combined
+  // with the saved autofill suggestions in |AutocompleteSuggestionsReturned()|.
   RenderViewHostDelegate::Autocomplete* autocomplete_delegate =
       delegate_->GetAutocompleteDelegate();
-  if (autocomplete_delegate &&
-      autocomplete_delegate->GetAutocompleteSuggestions(
-          query_id, field.name(), field.value())) {
+  if (autocomplete_delegate) {
+      autocomplete_delegate->GetAutocompleteSuggestions(field.name(),
+                                                        field.value());
   } else {
-    // No suggestions provided, so send an empty vector as the results.
-    AutocompleteSuggestionsReturned(query_id, std::vector<string16>());
+    AutocompleteSuggestionsReturned(std::vector<string16>());
   }
 }
 
 void RenderViewHost::OnDidShowAutoFillSuggestions() {
   NotificationService::current()->Notify(
       NotificationType::AUTOFILL_DID_SHOW_SUGGESTIONS,
       Source<RenderViewHost>(this),
       NotificationService::NoDetails());
 }
 
@@ skipping 33 matching lines @@
   autofill_delegate->FillAutoFillFormData(query_id, form, unique_id);
 }
 
 void RenderViewHost::OnDidFillAutoFillFormData() {
   NotificationService::current()->Notify(
       NotificationType::AUTOFILL_DID_FILL_FORM_DATA,
       Source<RenderViewHost>(this),
       NotificationService::NoDetails());
 }
 
+void RenderViewHost::ResetAutoFillState(int query_id) {
+  autofill_query_id_ = query_id;
+
+  autofill_values_.clear();
+  autofill_labels_.clear();
+  autofill_icons_.clear();
+  autofill_unique_ids_.clear();
+}
+
 void RenderViewHost::AutoFillSuggestionsReturned(
-    int query_id,
-    const std::vector<string16>& names,
+    const std::vector<string16>& values,
     const std::vector<string16>& labels,
     const std::vector<string16>& icons,
     const std::vector<int>& unique_ids) {
-  autofill_values_.assign(names.begin(), names.end());
+  autofill_values_.assign(values.begin(), values.end());
   autofill_labels_.assign(labels.begin(), labels.end());
   autofill_icons_.assign(icons.begin(), icons.end());
   autofill_unique_ids_.assign(unique_ids.begin(), unique_ids.end());
 }
 
 void RenderViewHost::AutocompleteSuggestionsReturned(
-    int query_id, const std::vector<string16>& suggestions) {
+    const std::vector<string16>& suggestions) {
   // Combine AutoFill and Autocomplete values into values and labels.
   for (size_t i = 0; i < suggestions.size(); ++i) {
     bool unique = true;
     for (size_t j = 0; j < autofill_values_.size(); ++j) {
+      // TODO(isherman): Why just when the label is empty?
       // If the AutoFill label is empty, we need to make sure we don't add a
       // duplicate value.
       if (autofill_labels_[j].empty() &&
           autofill_values_[j] == suggestions[i]) {
         unique = false;
         break;
       }
     }
 
     if (unique) {
       autofill_values_.push_back(suggestions[i]);
       autofill_labels_.push_back(string16());
       autofill_icons_.push_back(string16());
       autofill_unique_ids_.push_back(0);  // 0 means no profile.
     }
   }
 
   Send(new ViewMsg_AutoFillSuggestionsReturned(routing_id(),
-                                               query_id,
+                                               autofill_query_id_,
                                                autofill_values_,
                                                autofill_labels_,
                                                autofill_icons_,
                                                autofill_unique_ids_));
 }
 
 void RenderViewHost::AutoFillFormDataFilled(int query_id,
                                             const FormData& form) {
   Send(new ViewMsg_AutoFillFormDataFilled(routing_id(), query_id, form));
 }
@@ skipping 404 matching lines @@
 }
 #else
 void RenderViewHost::OnPagesReadyForPreview(int fd_in_browser) {
   // TODO(kmadhusu): Function definition needs to be changed.
   // fd_in_browser should be the file descriptor of the metafile.
 
   // Send the printingDone msg for now.
   Send(new ViewMsg_PrintingDone(routing_id(), -1, true));
 }
 #endif