Completed implementation of oauth in coverage scripts.

The access token is now transferred between the request and track scripts.

Almost completed the implementation, using oauth2.

Initial, incomplete implementation of the permission-request script.

The coverage tracking is broken temporarily, but it can now make OAuth requests.

BUG=
TEST=

Review URL: https://webrtc-codereview.appspot.com/366002

git-svn-id: http://webrtc.googlecode.com/svn/trunk@1530 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/.gitignore b/.gitignore
index 23651e6..7fc2525 100644
--- a/.gitignore
+++ b/.gitignore
@@ -49,6 +49,7 @@
 /third_party/libvpx
 /third_party/libyuv
 /third_party/llvm-build
+/third_party/oauth2
 /third_party/protobuf
 /third_party/valgrind
 /third_party/yasm