Add .gitignore file.

BUG=
R=mark@chromium.org

Review URL: https://breakpad.appspot.com/1314003

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1296 4c0a9323-5329-0410-9bdc-e9ce6186880e
Update DEPS to bring in gtest, gmock and GYP.

BUG=575
R=mark@chromium.org

Review URL: https://breakpad.appspot.com/1304004

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1297 4c0a9323-5329-0410-9bdc-e9ce6186880e
Update GYP dependency to r1886.

This updates both svn:external and DEPS. This version of GYP is able to produce VS2013 project files.

R=mark@chromium.org

Review URL: https://breakpad.appspot.com/1394002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1298 4c0a9323-5329-0410-9bdc-e9ce6186880e