Stop running pub get at gclient sync time and fix build bugs

mojo/public/dart/third_party/html/test/run.sh

Index: mojo/public/dart/third_party/html/test/run.sh
diff --git a/mojo/public/dart/third_party/html/test/run.sh b/mojo/public/dart/third_party/html/test/run.sh
new file mode 100755
index 0000000000000000000000000000000000000000..c060bd7545c2cabf0bc49972fbc57bb4e217c095
--- /dev/null
+++ b/mojo/public/dart/third_party/html/test/run.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+# Copyright (c) 2012, the Dart project authors.  Please see the LICENSE file
+# for details. All rights reserved. Use of this source code is governed by a
+# MIT-style license that can be found in the LICENSE file.
+
+# bail on error
+set -e
+
+# TODO(sigmund): replace with a real test runner
+DIR=$( cd $( dirname "${BASH_SOURCE[0]}" ) && pwd )
+
+# Note: dart_analyzer needs to be run from the root directory for proper path
+# canonicalization.
+pushd $DIR/..
+# TODO(jmesserly): switch to new analyzer. Note: it's missing a lot of the
+# tests for implemented members; we should get that fixed before switching.
+echo Analyzing library for warnings or type errors
+dartanalyzer --fatal-warnings lib/*.dart || \
+  echo "ignore analyzer errors"
+popd
+
+dart --checked test/run_all.dart $@