Roll Observatory deps (charted -> ^0.3.0)

packages/dart_style/test/regression/0300/0394.stmt

Index: packages/dart_style/test/regression/0300/0394.stmt
diff --git a/packages/dart_style/test/regression/0300/0394.stmt b/packages/dart_style/test/regression/0300/0394.stmt
new file mode 100644
index 0000000000000000000000000000000000000000..139851a53d4c608fb44dde7f7668b21a84c447d0
--- /dev/null
+++ b/packages/dart_style/test/regression/0300/0394.stmt
@@ -0,0 +1,26 @@
+>>>
+return $.Div(inner: [
+
+    $.Div(id: "container", inner: [
+        $.Canvas(width: maxD, height: maxD, clazz: "center", ref: canvas),
+        $.Form(clazz: "center", inner: [
+            $.Input(type: "range", max: 1000, value: seeds, onChange: onSliderChange)
+        ]),
+        $.Img(src: "math.png", width: "350px", height: "42px", clazz: "center")
+    ]),
+
+    $.Footer(inner: [
+        $.P(id: "notes", inner: "${seeds} seeds")
+    ]),
+]);
+<<<
+return $.Div(inner: [
+  $.Div(id: "container", inner: [
+    $.Canvas(width: maxD, height: maxD, clazz: "center", ref: canvas),
+    $.Form(clazz: "center", inner: [
+      $.Input(type: "range", max: 1000, value: seeds, onChange: onSliderChange)
+    ]),
+    $.Img(src: "math.png", width: "350px", height: "42px", clazz: "center")
+  ]),
+  $.Footer(inner: [$.P(id: "notes", inner: "${seeds} seeds")]),
+]);