delete webtry from main skia repo; it's been moved to buildbots

experimental/webtry/poly/Gruntfile.js

-module.exports = function(grunt) {
-
-  // Project configuration.
-  grunt.initConfig({
-    pkg: grunt.file.readJSON('package.json'),
-    // Install all the packages listed in the bower.json file.
-    shell: {
-      bower_install: {
-         command: 'bower install'
-      }
-    },
-    // Copy all the bower files into a single directory.
-    bower: {
-      dev: {
-        dest: '../../../out/grunt/third_party'
-      }
-    },
-    // Concatenate all the files in third_party into a single file.
-    concat: {
-      dist: {
-        src: [
-          '../../../out/grunt/third_party/WeakMap.js',
-          '../../../out/grunt/third_party/classlist.js',
-          '../../../out/grunt/third_party/pointerevents-polyfill.js',
-          '../../../out/grunt/third_party/MutationObserver.js',
-          '../../../out/grunt/third_party/CustomElements.js',
-          '../../../out/grunt/third_party/HTMLImports.js',
-        ],
-        dest: '../../../out/grunt/src/<%= pkg.name %>.js'
-      }
-    },
-    // Uglify the one big file into one smaller file.
-    uglify: {
-      options: {
-        banner: '/*! <%= pkg.name %> built from /exerimental/webtry/poly <%= grunt.template.today("yyyy-mm-dd") %> */\n'
-      },
-      build: {
-        src: '../../../out/grunt/src/<%= pkg.name %>.js',
-        dest: '../res/js/<%= pkg.name %>.js'
-      }
-    },
-    copy: {
-      simple: {
-        src: '../../../out/grunt/src/<%= pkg.name %>.js',
-        dest: '../res/js/<%= pkg.name %>.js'
-      }
-    }
-  });
-
-  // Load the plugins for the above commands.
-  grunt.loadNpmTasks('grunt-bower');
-  grunt.loadNpmTasks('grunt-contrib-concat');
-  grunt.loadNpmTasks('grunt-contrib-copy');
-  grunt.loadNpmTasks('grunt-contrib-cssmin');
-  grunt.loadNpmTasks('grunt-contrib-uglify');
-  grunt.loadNpmTasks('grunt-shell');
-
-  // By default run all the commands in the right sequence to build our custom minified polyfill.
-  grunt.registerTask('default', ['shell:bower_install', 'bower', 'concat', 'uglify']);
-
-  // A target to build an unminified version, for debugging.
-  grunt.registerTask('notmin', ['shell:bower_install', 'bower', 'concat', 'copy:simple']);
-
-};