R=robertphillips@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/502493002
TBR=robertphillips@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/496793003
This CL adds a new API to optimize across multiple SkPicture draw calls. Note that multiple pictures rendered at once (i.e., picture piles) should be flattened into a single new picture that includes the required clipping on the different layers. R=bsalomon@google.com, reed@google.com Author: robertphillips@google.com Review URL: https://codereview.chromium.org/491313003