Renderer side changes to save the user supplied data and use it to autofill in multiple page in the flow. Primarily being used by Autocheckout. This is achived by

* Saving the context of all form elements in the top most frame seen
* Using filled form data from browser to fill form elements earlier seen

BUG=172632


Review URL: https://chromiumcodereview.appspot.com/12087122

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@180352 0039d316-1c4b-4281-b951-d872f2087c98

4 files changed, 39 insertions, 6 deletions

diff --git a/chrome/renderer/autofill/autofill_agent.cc b/chrome/renderer/autofill/autofill_agent.cc
index 0e104fc7..f5c3bc8 100644
--- a/chrome/renderer/autofill/autofill_agent.cc
+++ b/chrome/renderer/autofill/autofill_agent.cc
@@ -180,10 +180,14 @@ void AutofillAgent::DidFinishDocumentLoad(WebFrame* frame) {
   // The document has now been fully loaded.  Scan for forms to be sent up to
   // the browser.
   std::vector<FormData> forms;
-  form_cache_.ExtractForms(*frame, &forms);
 
-  if (!frame->parent())
+  if (!frame->parent()) {
     topmost_frame_ = frame;
+    form_elements_.clear();
+    form_cache_.ExtractFormsAndFormElements(*frame, &forms, &form_elements_);
+  } else {
+    form_cache_.ExtractForms(*frame, &forms);
+  }
 
   if (!forms.empty()) {
     Send(new AutofillHostMsg_FormsSeen(routing_id(), forms,
@@ -657,9 +661,13 @@ void AutofillAgent::OnRequestAutocompleteResult(
 }
 
 void AutofillAgent::OnFillFormsAndClick(
-    const std::vector<FormData>& form_data,
+    const std::vector<FormData>& forms,
     const WebElementDescriptor& click_element_descriptor) {
-  // TODO(ramankk): Implement form filling.
+  DCHECK_EQ(forms.size(), form_elements_.size());
+
+  // Fill the form.
+  for (size_t i = 0; i < forms.size(); ++i)
+    FillFormIncludingNonFocusableElements(forms[i], form_elements_[i]);
 
   // It's possible that clicking the element to proceed in an Autocheckout
   // flow will not actually proceed to the next step in the flow, e.g. there
diff --git a/chrome/renderer/autofill/autofill_agent.h b/chrome/renderer/autofill/autofill_agent.h
index 2f44289..14c098a 100644
--- a/chrome/renderer/autofill/autofill_agent.h
+++ b/chrome/renderer/autofill/autofill_agent.h
@@ -212,6 +212,9 @@ class AutofillAgent : public content::RenderViewObserver,
   // The form element currently requesting an interactive autocomplete.
   WebKit::WebFormElement in_flight_request_form_;
 
+  // All the form elements seen in the top frame.
+  std::vector<WebKit::WebFormElement> form_elements_;
+
   // The action to take when receiving Autofill data from the AutofillManager.
   AutofillAction autofill_action_;
 
diff --git a/chrome/renderer/autofill/form_cache.cc b/chrome/renderer/autofill/form_cache.cc
index ea92a42..d5f1381 100644
--- a/chrome/renderer/autofill/form_cache.cc
+++ b/chrome/renderer/autofill/form_cache.cc
@@ -77,6 +77,13 @@ FormCache::~FormCache() {
 
 void FormCache::ExtractForms(const WebFrame& frame,
                              std::vector<FormData>* forms) {
+  ExtractFormsAndFormElements(frame, forms, NULL);
+}
+
+void FormCache::ExtractFormsAndFormElements(
+    const WebFrame& frame,
+    std::vector<FormData>* forms,
+    std::vector<WebFormElement>* web_form_elements) {
   // Reset the cache for this frame.
   ResetFrame(frame);
 
@@ -122,8 +129,11 @@ void FormCache::ExtractForms(const WebFrame& frame,
       continue;
 
     FormData form;
+    ExtractMask extract_mask =
+      static_cast<ExtractMask>(EXTRACT_VALUE | EXTRACT_OPTIONS);
+
     if (!WebFormElementToFormData(form_element, WebFormControlElement(),
-                                  REQUIRE_NONE, EXTRACT_VALUE, &form, NULL)) {
+                                  REQUIRE_NONE, extract_mask, &form, NULL)) {
       continue;
     }
 
@@ -131,8 +141,11 @@ void FormCache::ExtractForms(const WebFrame& frame,
     if (num_fields_seen > kMaxParseableFields)
       break;
 
-    if (form.fields.size() >= kRequiredAutofillFields)
+    if (form.fields.size() >= kRequiredAutofillFields) {
       forms->push_back(form);
+      if (web_form_elements)
+        web_form_elements->push_back(form_element);
+    }
   }
 }
 
diff --git a/chrome/renderer/autofill/form_cache.h b/chrome/renderer/autofill/form_cache.h
index 2906224..b235d21 100644
--- a/chrome/renderer/autofill/form_cache.h
+++ b/chrome/renderer/autofill/form_cache.h
@@ -16,6 +16,7 @@ struct FormDataPredictions;
 
 namespace WebKit {
 class WebDocument;
+class WebFormElement;
 class WebFrame;
 class WebInputElement;
 class WebSelectElement;
@@ -34,6 +35,14 @@ class FormCache {
   void ExtractForms(const WebKit::WebFrame& frame,
                     std::vector<FormData>* forms);
 
+  // Scans the DOM in |frame| extracting and storing forms.
+  // Returns a vector of the extracted forms and vector of associated web
+  // form elements.
+  void ExtractFormsAndFormElements(
+      const WebKit::WebFrame& frame,
+      std::vector<FormData>* forms,
+      std::vector<WebKit::WebFormElement>* web_form_elements);
+
   // Resets the forms for the specified |frame|.
   void ResetFrame(const WebKit::WebFrame& frame);