Remove SkImageFilter::getInputResult(), since its return value is not
style-compliant, and doesn't allow us to abort on failure.

R=reed@google.com

Review URL: https://codereview.chromium.org/15600003

git-svn-id: http://skia.googlecode.com/svn/trunk@9245 2bbb7eff-a529-9590-31e7-b0007b416f81
8 files changed