Remove wm_flow, browser, nesting_app examples

examples/wm_flow/wm/window_frame.sky

Index: examples/wm_flow/wm/window_frame.sky
diff --git a/examples/wm_flow/wm/window_frame.sky b/examples/wm_flow/wm/window_frame.sky
deleted file mode 100644
index 4e2267a71692f43b09443ade67d710e84dc76a93..0000000000000000000000000000000000000000
--- a/examples/wm_flow/wm/window_frame.sky
+++ /dev/null
@@ -1,84 +0,0 @@
-#!mojo mojo:sky_viewer
-<!--
-// 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.
--->
-<sky>
-<import src="/gen/examples/wm_flow/wm/window_frame_host.mojom.sky" as="example" />
-<import src="/sky/framework/embedder.sky" as="embedder" />
-<import src="/sky/framework/sky-button.sky"/>
-<import src="/sky/framework/sky-checkbox.sky"/>
-<import src="/sky/framework/sky-element/sky-element.sky" as="SkyElement"/>
-
-<style>
-/* FIXME: Hack until the requirement of a single root element is lifted. */
-sky { height: 100%; }
-</style>
-
-<sky-element name="window-frame">
-<template>
-  <style>
-  :host {
-    height: 100%;
-    background-color: lightgrey;
-  }
-  /* Nest two flexboxes and make the right side take up as much as possible */
-  window-bar {
-    display: flex;
-  }
-  left {
-    flex: 1;
-    display: flex;
-    align-content: flex-start;
-  }
-  /* Also making the checkbox and label a flexbox for convenience */
-  right {
-    display: flex;
-  }
-
-  /* Style sky controls to make them look more like ui/views */
-  sky-button {
-    border: none;
-    border: 1px solid blue;
-    padding: 2px;
-  }
-  sky-button:hover {
-    border: 1px solid lightblue;
-    background-color: darkgrey;
-  }
-  </style>
-  <window-bar>
-    <left>
-      <sky-checkbox on-click="handleCaptureClick" />Capture
-    </left>
-    <right>
-      <sky-button on-click="handleEmbiggenClick">Embiggen</sky-button>
-      <sky-button on-click="handleBegoneClick">Begone</sky-button>
-    </right>
-  </window-bar>
-</template>
-<script>
-module.exports = class extends SkyElement {
-  created() {
-    this.embedder = embedder.connectToEmbedderService(example.WindowFrameHost);
-    this.addEventListener('mousedown', function() {
-      this.embedder.activateWindow();
-    }.bind(this));
-  }
-  handleCaptureClick(event) {
-    this.embedder.setCapture(event.target.checked);
-  }
-  handleEmbiggenClick(event) {
-    this.embedder.toggleMaximize();
-  }
-  handleBegoneClick(event) {
-    this.embedder.closeWindow();
-  }
-}.register();
-</script>
-</sky-element>
-
-<window-frame />
-
-</sky>