Move the "import find_depot_tools" line to sections that actually use it.

This shrinks the dependency of depot_tools to only Windows and Cygwin, and allows those on other OSes to just build tarballs of sources without also having the depot_tools.

BUG=none

Review URL: https://codereview.chromium.org/171513010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252434 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/AUTHORS b/AUTHORS
index 6159f425..e5625de 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -275,6 +275,7 @@
 Ryan Norton <[email protected]>
 Ryan Sleevi <[email protected]>
 Ryuan Choi <[email protected]>
+Saikrishna Arcot <[email protected]>
 Sam Larison <[email protected]>
 Sam McDonald <[email protected]>
 Sanjoy Pal <[email protected]>