Disable FrameBuilder.clippedMerging as it relies on
merged bitmap ops which was disabled in b/26793764
Fix Buffer to correctly initialize mRefs count
Change-Id: I87d2fcc690a2ae14eaf751f650f522be5b622edf
Skia's SkCanvas::SaveFlags are being deprecated. This CL introduces
the equivalent android::SaveFlags, converts all internal clients to
the new enum, and switches the saveLayer glue to the
SaveLayerRec-based API.
Change-Id: Icb1785f4e7c0f652b1f04b34a1e3ccb063c408f3
