Get rid of BackingStore usage in chrome. I added methods on RenderWidgetHost to copy data out of the backing store to satisfy the existing users.
Note that the ThumbnailGenerator test turned out to be testing a feature that has since been removed! So I removed that test and the supporting code.
BUG=98716
Review URL: https://chromiumcodereview.appspot.com/9515009
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@124079 0039d316-1c4b-4281-b951-d872f2087c98
19 files changed