rAc: make requestAutocomplete() return a promise.

Source/core/dom/AutocompleteError.cpp

Index: Source/core/dom/AutocompleteError.cpp
diff --git a/Source/modules/quota/StorageInfo.cpp b/Source/core/dom/AutocompleteError.cpp
similarity index 89%
copy from Source/modules/quota/StorageInfo.cpp
copy to Source/core/dom/AutocompleteError.cpp
index 0a51cee7fb5e6183740935885ccd792d1e347b97..89b803670d48984c33f87cc1d9fba6ecfb01a4b1 100644
--- a/Source/modules/quota/StorageInfo.cpp
+++ b/Source/core/dom/AutocompleteError.cpp
@@ -29,19 +29,15 @@
  */
 
 #include "config.h"
-#include "modules/quota/StorageInfo.h"
+#include "core/dom/AutocompleteError.h"
 
 namespace WebCore {
 
-StorageInfo::StorageInfo(unsigned long long usage, unsigned long long quota)
-    : m_usage(usage)
-    , m_quota(quota)
+AutocompleteError::AutocompleteError(const String& reason)
+    : DOMException(0, "AutocompleteError")

[tkent, 2014/04/23 06:36:57]

Is it allowed to create a DOMException with code=0?

+    , m_reason(reason)
 {
     ScriptWrappable::init(this);
 }
 
-StorageInfo::~StorageInfo()
-{
-}
-
 } // namespace WebCore