AutoFill forms. We do this by responding to a message from WebKit which send...

chrome/renderer/form_manager.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/renderer/form_manager.h"
 
 #include "base/logging.h"
+#include "base/string_util.h"
 #include "base/stl_util-inl.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebNode.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebString.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebVector.h"
 
 using WebKit::WebFormElement;
 using WebKit::WebFrame;
 using WebKit::WebInputElement;
 using WebKit::WebNode;
@@ skipping 17 matching lines @@
   // Form loop.
   for (size_t i = 0; i < web_forms.size(); ++i) {
     FormElement* form_elements = new FormElement;
     form_elements->form_element = web_forms[i];
 
     // Form elements loop.
     WebVector<WebInputElement> input_elements;
     form_elements->form_element.getInputElements(input_elements);
     for (size_t j = 0; j < input_elements.size(); ++j) {
       WebInputElement element = input_elements[j];
-      form_elements->input_elements[element.nameForAutofill()] = element;
+      // TODO(jhawkins): Remove this check when we have labels.
+      if (!element.nameForAutofill().isEmpty())
+        form_elements->input_elements[element.nameForAutofill()] = element;
     }
 
     form_elements_map_[frame].push_back(form_elements);
   }
 }
 
 void FormManager::GetForms(std::vector<FormData>* forms,
                            RequirementsMask requirements) {
   // Frame loop.
   for (WebFrameFormElementMap::iterator iter = form_elements_map_.begin();
@@ skipping 57 matching lines @@
   if (!form_element)
     return false;
 
   DCHECK(form_element->input_elements.size() == form.elements.size());
   DCHECK(form.elements.size() == form.values.size());
 
   size_t i = 0;
   for (FormInputElementMap::iterator iter =
            form_element->input_elements.begin();
       iter != form_element->input_elements.end(); ++iter, ++i) {
-    DCHECK(iter->second.nameForAutofill() == form.elements[i]);
+    DCHECK_EQ(form.elements[i], iter->second.nameForAutofill());
 
     iter->second.setValue(form.values[i]);
     iter->second.setAutofilled(true);
   }
 
   return true;
 }
 
 void FormManager::Reset() {
   for (WebFrameFormElementMap::iterator iter = form_elements_map_.begin();
@@ skipping 41 matching lines @@
     form->elements.push_back(input_element.nameForAutofill());
     form->values.push_back(input_element.value());
 
     // TODO(jhawkins): It's possible for a form to have more than one submit
     // input element.  The FormData structure probably doesn't need to keep
     // track of the name of any submit button.
     if (input_element.inputType() == WebInputElement::Submit)
       form->submit = input_element.nameForAutofill();
   }
 }