Block additional fp-related methods

[pes10k]

Fixes #10288

This change would block the following 5 methods (presented below, with brief motivation for each). Numbers for feature use / tracking use are taken from https://www.cs.uic.edu/%7Epsnyder/static/papers/Browser_Feature_Usage_on_the_Modern_Web.pdf

CanvasRenderingContext2D.prototype.isPointInPath

• Is used in popular live, popular fingerprinting code
• Is infrequently used on the web (was observed on only 166 sites in the Alexa 10k)
• Is frequently blocked by anti-tracking tools (in the presence of Ghostery, it is only seen on 28 sites in the Alexa 10k, suggesting its used for tracking 83% of the time)

WebGLRenderingContext.prototype.getUniformLocation and WebGLRenderingContext.prototype.getAttribLocation

• Are used in popular live, popular fingerprinting code, (here and here, for example)
• Are infrequently used on the web (was observed on only 255 and 250 sites in the Alexa 10k, respectivly)
• Are frequently blocked by anti-tracking tools (in the presence of Ghostery, it is only seen on 44 and sites in the Alexa 10k, suggesting its used for tracking 82.75% and 82.4% of the time)
• Non-obvious use case (e.x.: its not obvious to see why you'd need to query these parameters out of the context, if you'd already set them)

SVGPathElement.prototype.getTotalLength

• Anecdotally Used in ways similar to canvas finger printing (font enumeration, getting subtle differences in rendering between platforms)
• Very infrequently used on the web (observed on 140 of the Alexa 10k)
• Very frequently associated with tracking (use goes down to only 2 sites, or a 98.57% reduction, in the presence of Ghostery)

SVGTextContentElement.prototype.getComputedTextLength

• Anecdotally Used in ways similar to canvas finger printing (font enumeration, getting subtle differences in rendering between platforms)
• Extremely associated with tracking (use goes from 1003 sites in the Alexa 10k, to 1, or a 99.9% reduction, in the presence of Ghostery)

[diracdeltas]

lgtm! please

1. squash the 3 commits into 1
2. add the documentation from this PR to https://github.com/brave/browser-laptop/wiki/Fingerprinting-Protection-Mode

[luixxiul]

@snyderp @diracdeltas were those commits merged somewhere?

[luixxiul]

nvm, I found the PR: #11140