RFR: 8218973: SVG with masking is not rendering image with mask effect [v6]

[Bhawesh Choudhary]

> Root cause of issue is Specifying a image mask from GraphicsContextJava.cpp in WebKit was not implemented, so masking
> doesn't take place at all while rendering SVGRect. to fix this issue add implementation of function clipToImageBuffer()
> in GraphicsContextJava.cpp and send clip image to WCGraphicsPrismContext.java  While rendering in
> WCGraphicsPrismContext.java if image clip mask is available, use it for rendering using MaskTextureGraphics interface
> otherwise use usual way of rendering.

Bhawesh Choudhary has updated the pull request incrementally with one additional commit since the last revision:

  HiDPI printing and Rendering fix

-------------

Changes:
  - all: https://git.openjdk.java.net/jfx/pull/213/files
  - new: https://git.openjdk.java.net/jfx/pull/213/files/f0c217ec..312d068a

Webrevs:
 - full: https://webrevs.openjdk.java.net/jfx/213/webrev.05
 - incr: https://webrevs.openjdk.java.net/jfx/213/webrev.04-05

  Stats: 34 lines in 2 files changed: 5 ins; 9 del; 20 mod
  Patch: https://git.openjdk.java.net/jfx/pull/213.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/213/head:pull/213

PR: https://git.openjdk.java.net/jfx/pull/213