Add property to CssStyleDeclaration to detect if a CSS value is available.

sdk/lib/_blink/dartium/_blink_dartium.dart

 /**
  * This library provides entry points to the native Blink code which backs
  * up the dart:html library.
  */
 library dart.dom._blink;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:html';
 import 'dart:_internal' hide Symbol, deprecated;
@@ skipping 693 matching lines @@
 
 class BlinkCSSStyleDeclaration {
   static $cssText_Getter(mthis) native "CSSStyleDeclaration_cssText_Getter";
 
   static $cssText_Setter(mthis, value) native "CSSStyleDeclaration_cssText_Setter";
 
   static $length_Getter(mthis) native "CSSStyleDeclaration_length_Getter";
 
   static $parentRule_Getter(mthis) native "CSSStyleDeclaration_parentRule_Getter";
 
+  static $__getter___Callback(mthis, name) native "CSSStyleDeclaration___getter___Callback_RESOLVER_STRING_1_DOMString";

[Leaf, 2014/08/05 23:52:52]

I may have lost track of the plot here - but I didn't think you were adding the
named getters in - I thought you were exposing query operators?

[Emily Fortuna, 2014/08/06 00:32:26]

Query is part of the getters. That's how it's exposed, through the named
getters.

+
   static $__setter___Callback(mthis, propertyName, propertyValue) native "CSSStyleDeclaration___setter___Callback";
 
   static $getPropertyPriority_Callback(mthis, propertyName) native "CSSStyleDeclaration_getPropertyPriority_Callback_RESOLVER_STRING_1_DOMString";
 
   static $getPropertyValue_Callback(mthis, propertyName) native "CSSStyleDeclaration_getPropertyValue_Callback_RESOLVER_STRING_1_DOMString";
 
   static $item_Callback(mthis, index) native "CSSStyleDeclaration_item_Callback_RESOLVER_STRING_1_unsigned long";
 
   static $removeProperty_Callback(mthis, propertyName) native "CSSStyleDeclaration_removeProperty_Callback_RESOLVER_STRING_1_DOMString";
 
@@ skipping 1438 matching lines @@
   static $mkFileReader() {
     return $_create_1constructorCallback();
   }
 
   static $_create_1constructorCallback() native "FileReader_constructorCallback_RESOLVER_STRING_0_";
 
   static $error_Getter(mthis) native "FileReader_error_Getter";
 
   static $readyState_Getter(mthis) native "FileReader_readyState_Getter";
 
-  static $result_Getter(mthis) native "FileReader_result_Getter";
-

[Leaf, 2014/08/05 23:52:52]

This will break if checked in - not a problem with your changes, but you'll need
to work around it.  This CL  https://codereview.chromium.org//395913002 seems to
have deleted this from the idl, but not updated blink (and doesn't work if blink
is regenerated).  This should get fixed soon, but in the meantime, you might
want to just hand add this back in before checking in.

   static $abort_Callback(mthis) native "FileReader_abort_Callback_RESOLVER_STRING_0_";
 
   static $readAsArrayBuffer_Callback(mthis, blob) native "FileReader_readAsArrayBuffer_Callback_RESOLVER_STRING_1_Blob";
 
   static $readAsDataURL_Callback(mthis, blob) native "FileReader_readAsDataURL_Callback_RESOLVER_STRING_1_Blob";
 
   // Generated overload resolver
   static $readAsText(mthis, blob, encoding) {
     if (encoding != null) {
       $_readAsText_1_Callback(mthis, blob, encoding);
@@ skipping 729 matching lines @@
 
   static $willValidate_Getter(mthis) native "HTMLFieldSetElement_willValidate_Getter";
 
   static $checkValidity_Callback(mthis) native "HTMLFieldSetElement_checkValidity_Callback_RESOLVER_STRING_0_";
 
   static $setCustomValidity_Callback(mthis, error) native "HTMLFieldSetElement_setCustomValidity_Callback_RESOLVER_STRING_1_DOMString";
 }
 
 class BlinkHTMLFontElement {}
 
-class BlinkHTMLFormControlsCollection {}
+class BlinkHTMLFormControlsCollection {
+  static $namedItem_Callback(mthis, name) native "HTMLFormControlsCollection_namedItem_Callback_RESOLVER_STRING_1_DOMString";

[Leaf, 2014/08/05 23:52:52]

Why is this showing up here - this doesn't seem related to your changes?

[Emily Fortuna, 2014/08/06 00:32:26]

It is related because these members also have union return types which were
previously getting omitted.

+}
 
 class BlinkHTMLFormElement {
   static $acceptCharset_Getter(mthis) native "HTMLFormElement_acceptCharset_Getter";
 
   static $acceptCharset_Setter(mthis, value) native "HTMLFormElement_acceptCharset_Setter";
 
   static $action_Getter(mthis) native "HTMLFormElement_action_Getter";
 
   static $action_Setter(mthis, value) native "HTMLFormElement_action_Setter";
 
@@ skipping 20 matching lines @@
   static $name_Setter(mthis, value) native "HTMLFormElement_name_Setter";
 
   static $noValidate_Getter(mthis) native "HTMLFormElement_noValidate_Getter";
 
   static $noValidate_Setter(mthis, value) native "HTMLFormElement_noValidate_Setter";
 
   static $target_Getter(mthis) native "HTMLFormElement_target_Getter";
 
   static $target_Setter(mthis, value) native "HTMLFormElement_target_Setter";
 
-  static $__getter___Callback(mthis, index) native "HTMLFormElement___getter___Callback_RESOLVER_STRING_1_unsigned long";
+  // Generated overload resolver
+  static $__getter__(mthis, index_OR_name) {
+    if ((index_OR_name is int || index_OR_name == null)) {
+      return $___getter___1_Callback(mthis, index_OR_name);
+    }
+    if ((index_OR_name is String || index_OR_name == null)) {
+      return $___getter___2_Callback(mthis, index_OR_name);
+    }
+    throw new ArgumentError("Incorrect number or type of arguments");
+  }
+
+  static $___getter___1_Callback(mthis, index_OR_name) native "HTMLFormElement___getter___Callback_RESOLVER_STRING_1_unsigned long";
+
+  static $___getter___2_Callback(mthis, index_OR_name) native "HTMLFormElement___getter___Callback_RESOLVER_STRING_1_DOMString";
 
   static $checkValidity_Callback(mthis) native "HTMLFormElement_checkValidity_Callback_RESOLVER_STRING_0_";
 
   static $requestAutocomplete_Callback(mthis, details) native "HTMLFormElement_requestAutocomplete_Callback_RESOLVER_STRING_1_Dictionary";
 
   static $reset_Callback(mthis) native "HTMLFormElement_reset_Callback_RESOLVER_STRING_0_";
 
   static $submit_Callback(mthis) native "HTMLFormElement_submit_Callback_RESOLVER_STRING_0_";
 }
 
@@ skipping 5052 matching lines @@
   static $iterationStart_Setter(mthis, value) native "Timing_iterationStart_Setter";
 
   static $iterations_Getter(mthis) native "Timing_iterations_Getter";
 
   static $iterations_Setter(mthis, value) native "Timing_iterations_Setter";
 
   static $playbackRate_Getter(mthis) native "Timing_playbackRate_Getter";
 
   static $playbackRate_Setter(mthis, value) native "Timing_playbackRate_Setter";
 
+  static $__getter___Callback(mthis, name) native "Timing___getter___Callback_RESOLVER_STRING_1_DOMString";
+
   static $__setter___Callback(mthis, name, duration) native "Timing___setter___Callback_RESOLVER_STRING_2_DOMString_double";
 }
 
 class BlinkTouch {
   static $clientX_Getter(mthis) native "Touch_clientX_Getter";
 
   static $clientY_Getter(mthis) native "Touch_clientY_Getter";
 
   static $identifier_Getter(mthis) native "Touch_identifier_Getter";
 
@@ skipping 1456 matching lines @@
   static containsKey(_DOMStringMap, key) native "DOMStringMap_containsKey_Callback";
 
   static item(_DOMStringMap, key) native "DOMStringMap_item_Callback";
 
   static setItem(_DOMStringMap, key, value) native "DOMStringMap_setItem_Callback";
 
   static remove(_DOMStringMap, key) native "DOMStringMap_remove_Callback";
 
   static get_keys(_DOMStringMap) native "DOMStringMap_getKeys_Callback";
 }