Roll IDLs forward.

third_party/WebCore/storage/Storage.idl

Index: third_party/WebCore/storage/Storage.idl
diff --git a/third_party/WebCore/storage/Storage.idl b/third_party/WebCore/storage/Storage.idl
index 55da555055f2e29593c58e645d4a2409fbde3ffd..58b0e2c26404bf8638a186af7449b2d6d5db96e3 100644
--- a/third_party/WebCore/storage/Storage.idl
+++ b/third_party/WebCore/storage/Storage.idl
@@ -30,12 +30,16 @@
     CustomEnumerateProperty,
     CustomNamedSetter,
 ] interface Storage {
-    [NotEnumerable] readonly attribute unsigned long length;
-    [NotEnumerable, TreatReturnedNullStringAs=Null] DOMString key(in unsigned long index);
-    [NotEnumerable, TreatReturnedNullStringAs=Null] DOMString getItem(in DOMString key);
+    [NotEnumerable] readonly attribute unsigned long length getter raises(DOMException);
+    [NotEnumerable, TreatReturnedNullStringAs=Null] DOMString key(in unsigned long index)
+        raises(DOMException);
+    [NotEnumerable, TreatReturnedNullStringAs=Null] DOMString getItem(in DOMString key)
+        raises(DOMException);
     [NotEnumerable] void setItem(in DOMString key, in DOMString data) 
         raises(DOMException);
-    [NotEnumerable] void removeItem(in DOMString key);
-    [NotEnumerable] void clear();
+    [NotEnumerable] void removeItem(in DOMString key)
+        raises(DOMException);
+    [NotEnumerable] void clear()
+        raises(DOMException);
 };