Build shadow_dom package in dart/pkg

pkg/shadow_dom/tool/conf/karma.conf.js

Index: pkg/shadow_dom/tool/conf/karma.conf.js
diff --git a/pkg/shadow_dom/tool/conf/karma.conf.js b/pkg/shadow_dom/tool/conf/karma.conf.js
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+// Sample Karma configuration file, that contain pretty much all the available options
+// It's used for running client tests on Travis (http://travis-ci.org/#!/karma-runner/karma)
+// Most of the options can be overriden by cli arguments (see karma --help)
+//
+// For all available config options and default values, see:
+// https://github.com/karma-runner/karma/blob/stable/lib/config.js#L54
+
+
+// base path, that will be used to resolve files and exclude
+basePath = '../';
+
+// list of files / patterns to load in the browser
+files = [
+  'tools/test/mocha-htmltest.js',
+  'conf/mocha.conf.js',
+  'node_modules/chai/chai.js',
+  'shadowdom.js',
+  'test/test.main.js',
+  {pattern: 'src/**/*.js', included: false},
+  {pattern: 'test/**/*.js', included: false},
+  {pattern: 'test/**/*.html', included: false},
+  {pattern: 'tools/**/*.js', included: false}
+];
+
+// list of files to exclude
+exclude = [];
+
+frameworks = ['mocha'];
+
+// use dots reporter, as travis terminal does not support escaping sequences
+// possible values: 'dots', 'progress', 'junit', 'teamcity'
+// CLI --reporters progress
+reporters = ['progress'];
+
+// web server port
+// CLI --port 9876
+port = 9876;
+
+// cli runner port
+// CLI --runner-port 9100
+runnerPort = 9100;
+
+// enable / disable colors in the output (reporters and logs)
+// CLI --colors --no-colors
+colors = true;
+
+// level of logging
+// possible values: LOG_DISABLE || LOG_ERROR || LOG_WARN || LOG_INFO || LOG_DEBUG
+// CLI --log-level debug
+logLevel = LOG_INFO;
+
+// enable / disable watching file and executing tests whenever any file changes
+// CLI --auto-watch --no-auto-watch
+autoWatch = true;
+
+// Start these browsers, currently available:
+// - Chrome
+// - ChromeCanary
+// - Firefox
+// - Opera
+// - Safari (only Mac)
+// - PhantomJS
+// - IE (only Windows)
+// CLI --browsers Chrome,Firefox,Safari
+browsers = ['ChromeCanary'];
+
+// If browser does not capture in given timeout [ms], kill it
+// CLI --capture-timeout 5000
+captureTimeout = 50000;
+
+// Auto run tests on start (when browsers are captured) and exit
+// CLI --single-run --no-single-run
+singleRun = true;
+
+// report which specs are slower than 500ms
+// CLI --report-slower-than 500
+reportSlowerThan = 500;
+
+// compile coffee scripts
+preprocessors = {
+};
+
+plugins = [
+  'karma-mocha',
+  'karma-chrome-launcher',
+  'karma-firefox-launcher',
+  'karma-script-launcher',
+  'karma-crbot-reporter'
+]