Implement WebViewDatabase's hasFormData API for chromium based webview.

components/autofill/browser/webdata/autofill_table.cc

Index: components/autofill/browser/webdata/autofill_table.cc
diff --git a/components/autofill/browser/webdata/autofill_table.cc b/components/autofill/browser/webdata/autofill_table.cc
index a9c736738da738b33b1debf8092625e0702bbf6b..1c15d3e4c5633f3c81202acc9f2720b8673e1652 100644
--- a/components/autofill/browser/webdata/autofill_table.cc
+++ b/components/autofill/browser/webdata/autofill_table.cc
@@ -463,6 +463,17 @@ bool AutofillTable::GetFormValuesForElementName(
   return s.Succeeded();
 }
 
+bool AutofillTable::HasFormElements() {
+  sql::Statement s(db_->GetUniqueStatement(
+      "SELECT COUNT(*) FROM autofill"));
+  if (!s.Step()) {
+    NOTREACHED();
+    return false;
+  } else {

[Ilya Sherman, 2013/04/27 00:05:55]

nit: No else stmt after a return stmt, please.

[sgurun-gerrit only, 2013/04/29 17:55:16]

Done.

[benm (inactive), 2013/04/29 18:00:03]

return s.Step() ? s.ColumnInt(0) > 0 : false;

looks quite neat. You lose the NOTREACHED though I guess.

[sgurun-gerrit only, 2013/04/29 19:32:39]

himm, notreached is used all over this file in similar circumstances. I am not
sure if we want to lose it.


On 2013/04/29 18:00:03, benm wrote:

+    return s.ColumnInt(0) > 0;
+  }
+}
+
 bool AutofillTable::RemoveFormElementsAddedBetween(
     const Time& delete_begin,
     const Time& delete_end,