add replay entry point to SkPictureRecorder for Android

This CL adds an Android-only entry point to address the Java Picture(Picture) and serialize use cases. Note that (in its current form) it doesn't preserve the old API's handling of unbalanced saves/saveLayers (this CL always balances them).

R=reed@google.com, scroggo@google.com, djsollen@google.com, mtklein@google.com

Author: robertphillips@google.com

Review URL: https://codereview.chromium.org/252873005

git-svn-id: http://skia.googlecode.com/svn/trunk@14911 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed