[Rev 02] RFR: 8234471: Canvas in webview displayed with wrong scale on Windows

[Arun Joseph]

> This bug can be reproduced when the screen resolution is at 125%, 150% and 175% for Windows, which correpsonds to
> `pixelScale` values of 1.25, 1.5 and 1.75, respectively.
> Issue: The rectangle inside canvas is rendered on `pixelScale` while the borders are rendered on `Math.ceil(pixelScale)`
> 
> Fix: Use `Math.ceil(pixelScale)` for calculating `pixelScaleTransform`

Arun Joseph has updated the pull request incrementally with one additional commit since the last revision:

  Updated test

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Changes:
  - all: https://git.openjdk.java.net/jfx/pull/62/files
  - new: https://git.openjdk.java.net/jfx/pull/62/files/ea422a78..eadff865

Webrevs:
 - full: https://webrevs.openjdk.java.net/jfx/62/webrev.02
 - incr: https://webrevs.openjdk.java.net/jfx/62/webrev.01-02

  Stats: 13 lines in 1 file changed: 8 ins; 5 del; 0 mod
  Patch: https://git.openjdk.java.net/jfx/pull/62.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/62/head:pull/62

PR: https://git.openjdk.java.net/jfx/pull/62