Chromoting host to convert only changed regions
Chromoting host to convert only changed regions

This significantly reduces the number of pixels we need to perform color space
conversion.

BUG=71253
TEST=None

Review URL: http://codereview.chromium.org/6334040

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@73553 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