Rationalize Dart mojo and sky package structure

sky/framework/elements/sky-ink-splash.sky

Index: sky/framework/elements/sky-ink-splash.sky
diff --git a/sky/framework/elements/sky-ink-splash.sky b/sky/framework/elements/sky-ink-splash.sky
deleted file mode 100644
index 6a2ab6db87f8267adf775fb27e006814927355db..0000000000000000000000000000000000000000
--- a/sky/framework/elements/sky-ink-splash.sky
+++ /dev/null
@@ -1,98 +0,0 @@
-<!--
-// 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 src="sky-element.sky" />
-
-<sky-element>
-<template>
-  <style>
-    :host {
-      position: absolute;
-      pointer-events: none;
-      overflow: hidden;
-      top: 0;
-      left: 0;
-      bottom: 0;
-      right: 0;
-    }
-
-    #splash {
-      position: absolute;
-      background-color: rgba(0, 0, 0, 0.4);
-      border-radius: 0;
-      top: 0;
-      left: 0;
-      height: 0;
-      width: 0;
-    }
-  </style>
-  <div id="splash" />
-</template>
-<script>
-import "../animation/curves.dart";
-import "animation/controller.dart";
-import "animation/timer.dart";
-import "dart:math" as math;
-import "dart:sky";
-import "dart:async";
-
-const double _kSplashSize = 400.0;
-const double _kSplashDuration = 500.0;
-
-@Tagname('sky-ink-splash')
-class SkyInkSplash extends SkyElement implements AnimationDelegate {
-  AnimationController _animation;
-  Element _splash;
-  double _offsetX;
-  double _offsetY;
-  Completer<SkyInkSplash> _completer = new Completer();
-
-  SkyInkSplash() {
-    _animation = new AnimationController(this);
-  }
-
-  void shadowRootReady() {
-    _splash = shadowRoot.getElementById('splash');
-  }
-
-  Future start(double x, double y, ClientRect rect) {
-    _offsetX = x - rect.left;
-    _offsetY = y - rect.top;
-    _animation.start(
-      begin: 0.0,
-      end: _kSplashSize,
-      duration: _kSplashDuration,
-      curve: easeOut);
-    return _completer.future;
-  }
-
-  void _done() {
-    remove();
-    _completer.complete(this);
-  }
-
-  void cancel() {
-    // TODO(eseidel): Should fade away instead of stopping immediately.
-    _animation.stop();
-    _done();
-  }
-
-  void updateAnimation(double p) {
-    if (p == _kSplashSize) {
-      _done();
-      return;
-    }
-    _splash.style['top'] = '${_offsetY - p/2}px';
-    _splash.style['left'] = '${_offsetX - p/2}px';
-    _splash.style['width'] = '${p}px';
-    _splash.style['height'] = '${p}px';
-    _splash.style['border-radius'] = '${p}px';
-    _splash.style['opacity'] = '${1.0 - (p / _kSplashSize)}';
-  }
-}
-
-_init(script) => register(script, SkyInkSplash);
-</script>
-</sky-element>