Try server and buildbot scripts now using Chromium scripts.

- compatible with depot_tools try commands.
- old build master is converted to use Chromium scripts, according to
http://www.chromium.org/developers/testing/chromium-build-infrastructure/getting-the-buildbot-source/forking-your-buildbot
- slaves can now be run out of a plain checkout, no local configuration needed.

Also added files to make it possible to use tools as a separate checkout.

BUG=None
TEST=Runs on local machine with remote slaves. I've successfully submitted try jobs with both git try and gcl try commands.

Review URL: https://webrtc-codereview.appspot.com/449011

git-svn-id: http://webrtc.googlecode.com/svn/trunk@1945 4adac7df-926f-26a2-2b94-8c16560cd09d

tools/continuous_build/build_internal/scripts/generate_coverage_html.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+#  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
+#
+#  Use of this source code is governed by a BSD-style license
+#  that can be found in the LICENSE file in the root of the source
+#  tree. An additional intellectual property rights grant can be found
+#  in the file PATENTS.  All contributing project authors may
+#  be found in the AUTHORS file in the root of the source tree.
+#
+
+# Generates a LCOV error report and makes the results readable to all.
+
+genhtml $1 --output-directory $2
+if [ "$?" -ne "0" ]; then
+  exit 1
+fi
+
+chmod -R 777 $2