Refactor fn2.dart, since it breached our 1000-line threshold.

sky/sdk/BUILD.gn

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//mojo/public/dart/rules.gni")
 
 dart_pkg("sdk") {
   sources = [
     "CHANGELOG.md",
     "README.md",
@@ skipping 25 matching lines @@
     "lib/framework/components/material.dart",
     "lib/framework/components/menu_divider.dart",
     "lib/framework/components/menu_item.dart",
     "lib/framework/components/modal_overlay.dart",
     "lib/framework/components/popup_menu.dart",
     "lib/framework/components/popup_menu_item.dart",
     "lib/framework/components/radio.dart",
     "lib/framework/components/scaffold.dart",
     "lib/framework/components/scrollable.dart",
     "lib/framework/components/tool_bar.dart",
-    "lib/framework/components2/animated_component.dart",
-    "lib/framework/components2/button.dart",
-    "lib/framework/components2/button_base.dart",
-    "lib/framework/components2/checkbox.dart",
-    "lib/framework/components2/drawer.dart",
-    "lib/framework/components2/drawer_header.dart",
-    "lib/framework/components2/fixed_height_scrollable.dart",
-    "lib/framework/components2/floating_action_button.dart",
-    "lib/framework/components2/icon.dart",
-    "lib/framework/components2/icon_button.dart",
-    "lib/framework/components2/ink_well.dart",
-    "lib/framework/components2/input.dart",
-    "lib/framework/components2/material.dart",
-    "lib/framework/components2/menu_divider.dart",
-    "lib/framework/components2/menu_item.dart",
-    "lib/framework/components2/modal_overlay.dart",
-    "lib/framework/components2/popup_menu.dart",
-    "lib/framework/components2/popup_menu_item.dart",
-    "lib/framework/components2/radio.dart",
-    "lib/framework/components2/scaffold.dart",
-    "lib/framework/components2/scrollable.dart",
-    "lib/framework/components2/tool_bar.dart",
     "lib/framework/debug/shake-to-reload.sky",
     "lib/framework/debug/tracing.dart",
     "lib/framework/editing/editable_string.dart",
     "lib/framework/editing/editable_text.dart",
     "lib/framework/editing/keyboard.dart",
     "lib/framework/editing2/editable_string.dart",
     "lib/framework/editing2/editable_text.dart",
+    "lib/framework/editing2/input.dart",
     "lib/framework/editing2/keyboard.dart",
     "lib/framework/elements/animation/controller.dart",
     "lib/framework/elements/animation/timer.dart",
     "lib/framework/elements/material-element.sky",
     "lib/framework/elements/shadow.sky",
     "lib/framework/elements/sky-box.sky",
     "lib/framework/elements/sky-button.sky",
     "lib/framework/elements/sky-checkbox.sky",
     "lib/framework/elements/sky-drawer-header.sky",
     "lib/framework/elements/sky-drawer.sky",
     "lib/framework/elements/sky-element.sky",
     "lib/framework/elements/sky-icon.sky",
     "lib/framework/elements/sky-ink-splash.sky",
     "lib/framework/elements/sky-input.sky",
     "lib/framework/elements/sky-menu-divider.sky",
     "lib/framework/elements/sky-menu-item.sky",
     "lib/framework/elements/sky-radio.sky",
     "lib/framework/elements/sky-scrollable.sky",
     "lib/framework/elements/sky-toolbar.sky",
     "lib/framework/embedder.dart",
     "lib/framework/fn.dart",
-    "lib/framework/fn2.dart",
     "lib/framework/layout.dart",
     "lib/framework/net/fetch.dart",
     "lib/framework/net/image_cache.dart",
     "lib/framework/node.dart",
     "lib/framework/painting/box_painter.dart",
     "lib/framework/painting/shadows.dart",
     "lib/framework/reflect.dart",
     "lib/framework/rendering/block.dart",
     "lib/framework/rendering/box.dart",
     "lib/framework/rendering/flex.dart",
     "lib/framework/rendering/object.dart",
     "lib/framework/rendering/paragraph.dart",
     "lib/framework/rendering/stack.dart",
     "lib/framework/scheduler.dart",
     "lib/framework/shell.dart",
     "lib/framework/theme/colors.dart",
     "lib/framework/theme/shadows.dart",
     "lib/framework/theme/typography.dart",
     "lib/framework/theme/view_configuration.dart",
     "lib/framework/theme2/colors.dart",
     "lib/framework/theme2/shadows.dart",
     "lib/framework/theme2/typography.dart",
     "lib/framework/theme2/view_configuration.dart",
+    "lib/framework/widgets/animated_component.dart",
+    "lib/framework/widgets/button.dart",
+    "lib/framework/widgets/button_base.dart",
+    "lib/framework/widgets/checkbox.dart",
+    "lib/framework/widgets/drawer.dart",
+    "lib/framework/widgets/drawer_header.dart",
+    "lib/framework/widgets/fixed_height_scrollable.dart",
+    "lib/framework/widgets/floating_action_button.dart",
+    "lib/framework/widgets/icon.dart",
+    "lib/framework/widgets/icon_button.dart",
+    "lib/framework/widgets/ink_well.dart",
+    "lib/framework/widgets/material.dart",
+    "lib/framework/widgets/menu_divider.dart",
+    "lib/framework/widgets/menu_item.dart",
+    "lib/framework/widgets/modal_overlay.dart",
+    "lib/framework/widgets/popup_menu.dart",
+    "lib/framework/widgets/popup_menu_item.dart",
+    "lib/framework/widgets/radio.dart",
+    "lib/framework/widgets/scaffold.dart",
+    "lib/framework/widgets/scrollable.dart",
+    "lib/framework/widgets/tool_bar.dart",
+    "lib/framework/widgets/ui_node.dart",
+    "lib/framework/widgets/wrappers.dart",
     "lib/sky_tool",
     "pubspec.yaml",
   ]
 
   # List of mojom targets that the sky pkg exports
   deps = [
     "//sky/services/viewport",
   ]
 
   datadeps = [
     "//sky/services/testing:bindings",
     "//sky/engine/bindings",
   ]
 
   sdk_ext_directory = "$root_gen_dir/sky/bindings"
 }