Use new iOS NTP experiment ids.

BUG=
NOTRY=true

Review URL: https://codereview.chromium.org/164193008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252330 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 252330
android envsetup: Remove envsetup_functions.sh.

* inline common_vars_defines into its only caller
* then inline sdk_build_init into its only caller
* stop exporting ANDROID_SDK_BUILD since nothing reads it any more
* stop processing options; --target-arch has been a hard error for a while
  and nothing blew up
* remove a check for CHROME_ANDROID_BUILD_WEBVIEW as that's now
  never set when this script is sourced

BUG=330631

Review URL: https://codereview.chromium.org/171713010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252332 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 252332