[OpenJDK 2D-Dev] RFR: 8226384: Implement a better logic to switch between OpenGL and Metal pipeline [v2]

[Jayathirth D V]

> We have many if else conditions to select OpenGL/Metal pipeline objects.
> Apart from initialization phase we should not fetch these objects everytime checking whether we are using OpenGL/Metal pipeline.

Jayathirth D V has updated the pull request incrementally with one additional commit since the last revision:

  Move peer and getters to CFLayer

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3851/files
  - new: https://git.openjdk.java.net/jdk/pull/3851/files/b9d7cd12..32c296c2

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3851&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3851&range=00-01

  Stats: 75 lines in 3 files changed: 26 ins; 49 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3851.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3851/head:pull/3851

PR: https://git.openjdk.java.net/jdk/pull/3851