Audit brave usage of ExecuteJavaScriptInIsolatedWorld() & ExecuteScript*()

[atuchin-m]

We need to investigate how it could affect every day browser usage performance.
Methods:
browser process: ExecuteJavaScriptInIsolatedWorld() and ExecuteJavaScriptForTests()
renderer: ExecuteScript[InIsolatedWorld](), RequestExecuteScript()

[atuchin-m]

A list of related issues:

1. ads new XMLSerializer().serializeToString(document) inject: [ads] Only call AdsTabHelper::MaybeNotifyTabHtmlContentDidChange for URL redirect chains that match view-through or click-through conversions #38497. The previous attempt: [ads] Optimize ads tab helper innerText/HTML performance #34919
2. braveEthereum [perf] braveEthereum and braveSolana inject on an empty profile #35237
3. braveSolana inject (the similar to braveEthereum).
4. content_picker Brave extension inject: Don't inject content picker on pages by default #37841
5. playlist mutation observer inject for audio/video