Rename onFilterImageGPU to filterImageGPU(), to match skia convention.  No change in functionality.

(Note that this does mean that clients must override onFilterImage() to implement the raster path, but filterImageGPU() to implement the GPU path.)

Review URL: https://codereview.appspot.com/7058078

git-svn-id: http://skia.googlecode.com/svn/trunk@7123 2bbb7eff-a529-9590-31e7-b0007b416f81
10 files changed