[Chrome OS] Log and handle cryptohomed callbacks for calls we didn't initiate
[Chrome OS] Log and handle cryptohomed callbacks for calls we didn't initiate

BUG=chromium-os:7038
TEST=unit tests, install on device and test for crashes on "full sync" after PW change

Review URL: http://codereview.chromium.org/3443029

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@61516 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser