Move frog dart:dom from fields to getters/setters.

client/dom/generated/src/frog/AudioBuffer.dart

Index: client/dom/generated/src/frog/AudioBuffer.dart
diff --git a/client/dom/generated/src/frog/AudioBuffer.dart b/client/dom/generated/src/frog/AudioBuffer.dart
index 032af0f8e1bb4f7efe9f91668eabc16b6bdbd837..319ec39fce9dfee15ddf67bbb3e05e766997d270 100644
--- a/client/dom/generated/src/frog/AudioBuffer.dart
+++ b/client/dom/generated/src/frog/AudioBuffer.dart
@@ -1,15 +1,17 @@
 
 class AudioBuffer native "*AudioBuffer" {
 
-  num duration;
+  num get duration() native "return this.duration;";
 
-  num gain;
+  num get gain() native "return this.gain;";
 
-  int length;
+  void set gain(num value) native "this.gain = value;";
 
-  int numberOfChannels;
+  int get length() native "return this.length;";
 
-  num sampleRate;
+  int get numberOfChannels() native "return this.numberOfChannels;";
+
+  num get sampleRate() native "return this.sampleRate;";
 
   Float32Array getChannelData(int channelIndex) native;