Add per board customization, clean up private autotests.

BUG=1583
TEST=actually builds

Change-Id: I6510f30faf3f3c2e88b4ea9c63985c09086e1a5d

Review URL: http://codereview.chromium.org/4482001
(cherry picked from commit afba119639afe0fb8206e58ead091f2efd114192)

Allow branch customization for factory

BUG=1583
TEST=removes superfluous files

Change-Id: I576fc0dd811f9c1ed6299a539e0e8a014b37bdc8

Review URL: http://codereview.chromium.org/4376001
(cherry picked from commit 08fdc9da26456c286254c250366bdfc738f8ed38)

No pagecycler for factory image

BUG=1583
TEST="build, no pagecycler in factory."

Change-Id: I43d23de5d518634697e17a32bcd94a43aad46aba

Review URL: http://codereview.chromium.org/4342002
(cherry picked from commit f3e98785f3ed3f4e87e4287ee3ec45e2fc737c89)

Review URL: http://codereview.chromium.org/5091002

mod_for_factory_scripts/600customizeRelease

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+TEST_DIR="${ROOT_FS_DIR}/usr/local/autotest/site_tests/suite_Factory"
+
+pushd ${TEST_DIR} 1> /dev/null
+
+# If there is a customize_$BOARD script for this board, let's run it.
+# This allows adding settings for specific factories or systems.
+CUSTOMIZE="customize_${BOARD}"
+if [ -e "${CUSTOMIZE}" ]; then
+  echo "Running ${CUSTOMIZE}"
+  "./${CUSTOMIZE}"
+fi
+
+# We don't need the customize script anymore.
+rm -f customize_*
+
+popd 1> /dev/null

mod_image_for_test.sh

@@ -144,6 +144,7 @@ install_autotest() {
       --exclude=site_tests/platform_StackProtector \
       --exclude=deps/chrome_test \
       --exclude=site_tests/desktopui_BrowserTest \
+      --exclude=site_tests/desktopui_PageCyclerTests \
       --exclude=site_tests/desktopui_UITest \
       --exclude=.svn \
       ${AUTOTEST_SRC}/client/* "${stateful_root}/${autotest_client}"