commit dabd4f0b799318cb6e90b69ae1ec0ed0b6d32f60
author halcanary <halcanary@google.com> Wed Aug 03 11:16:56 2016 -0700
committer Commit bot <commit-bot@chromium.org> Wed Aug 03 11:16:57 2016 -0700
tree 440e9e2677dbbf17b2b8e2ce10a7131b99641eb7
parent 62e1a1a4ba9926c9b515eb603173ea4202ac28ae

SkPDF: PDFShader code modernized.

Motivation:  reduce code complexity.

SkCanon stores SkPDFShader::State next to SkDFObject, not inside.

many places use sk_sp<T> rather than T* to represent ownership.

SkPDFShader::State no longer holds bitmap.

SkPDFShader::State gets move constructor, no longer heap-allocated.

Classes removed:
  SkPDFFunctionShader
  SkPDFAlphaFunctionShader
  SkPDFImageShader

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2193973002

Review-Url: https://codereview.chromium.org/2193973002