AutoFill: Implement the 'Clear form' menu item in the suggestions popup.

BUG=44616
TEST=FormManagerTest.*

Review URL: http://codereview.chromium.org/2752010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@49658 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 14 insertions, 2 deletions

diff --git a/chrome/renderer/form_manager.h b/chrome/renderer/form_manager.h
index 4d6aa5c..bfc639f 100644
--- a/chrome/renderer/form_manager.h
+++ b/chrome/renderer/form_manager.h
@@ -96,9 +96,14 @@ class FormManager {
   // Previews the form represented by |form|.  Same conditions as FillForm.
   bool PreviewForm(const webkit_glue::FormData& form);
 
+  // Clears the values of all input elements in the form that contains |node|.
+  // Returns false if the form is not found.
+  bool ClearFormWithNode(const WebKit::WebNode& node);
+
   // Clears the placeholder values and the auto-filled background for any fields
-  // in |form| that have been previewed.
-  void ClearPreviewedForm(const webkit_glue::FormData& form);
+  // in |form| that have been previewed.  Returns false if the form is not
+  // found.
+  bool ClearPreviewedForm(const webkit_glue::FormData& form);
 
   // Resets the stored set of forms.
   void Reset();
@@ -106,6 +111,9 @@ class FormManager {
   // Resets the forms for the specified |frame|.
   void ResetFrame(const WebKit::WebFrame* frame);
 
+  // Returns true if |form| has any auto-filled fields.
+  bool FormWithNodeIsAutoFilled(const WebKit::WebNode& node);
+
  private:
   // Stores the WebFormElement and the form control elements for a form.
   struct FormElement {
@@ -136,6 +144,10 @@ class FormManager {
   static string16 InferLabelForElement(
       const WebKit::WebFormControlElement& element);
 
+  // Finds the cached FormElement that contains |node|.
+  bool FindCachedFormElementWithNode(const WebKit::WebNode& node,
+                                     FormElement** form_element);
+
   // Uses the data in |form| to find the cached FormElement.
   bool FindCachedFormElement(const webkit_glue::FormData& form,
                              FormElement** form_element);