This commit contains the basic structure of the project:
 - LICENSE and related files.
 - DEPS to check dependencies out into third_party.
 - README.crashpad files and .gyp files to accompany third_party
   dependencies.
 - Infrastructure to run GYP as a gclient hook.
 - codereview.settings to enable Rietveld code review.
 - Assorted other administrative and dot-files.

R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/426403002