Remove no-longer-used webview glue sources.

The WebView glue code no longer lives in Android, it's in the Chromium
repository with the rest of the WebView implementation. Remove the
unused sources, the unused build configuration, and also the obsolete
scripts for running the downstream buildbot and merging Chromium changes
into Android.

Change-Id: If45550f5951bc7773c7ed011c05f845d1b65251b
121 files changed
tree: 1e30353002ddf6ec0d9780384b34a83290756afe
  1. chromium/
  2. nullwebview/
  3. Android.mk