Add more logging to help debug base64 issue.

BUG=skia:
TBR=mtklein

Review URL: https://codereview.chromium.org/657343003
Remove codesite/svn references from skia-tree-status

BUG=skia:

Review URL: https://codereview.chromium.org/660063002
Fix issue with too much padding on base64 data.

TBR=mtklein
BUG=skia:

Review URL: https://codereview.chromium.org/663573004