chore: bump chromium to 121.0.6147.0 (main) (#40523)

* chore: bump chromium in DEPS to 121.0.6128.0

* build: update patches

* refactor: remove instrumentation from extensions code

Ref: 5002404

* refactor: modernization of tabs_api

Ref: 4997031

* fix: add RecordHover and RecordDrag handlers

* build: add missing pdf files

* chore: bump chromium in DEPS to 121.0.6129.0

* chore: bump chromium in DEPS to 121.0.6131.0

* chore: update patches

* refactor: remove will_cause_resize from ExitFullscreen

Ref: 5031312

* chore: add missing std converter include

Before these were being inferred as std::string implicitly, not anymore
Ref: 5029573

* chore: Unwrap UserScriptList from unique_ptrs

Ref: 5005198

* refactor: add PDF internal id into PDF stream info

Ref: 4876972

* refactor: add metadata to view classes

Ref: 4994885

* chore: run lint --fix

* chore: update libc++ filenames

* chore: clean up menubar

* chore: update patches after main merge

* 5010979: Replace base::WStringPiece usage with std::wstring_view | 5010979

* chore: bump chromium in DEPS to 121.0.6142.0

* chore: update patches

* 4969574: Refactor NativeDesktopMediaList | 4969574

* 5031192: [blink] Create new blink test suite that doesn't create blink Isolate | 5031192

* chore: update v8/devtools patches

* 5040722: [base] Replace MakeFixedFlatTreeSorted with tag type overloads | 5040722

* 5026474: Add --generate-pdf-document-outline | 5026474

* 5024297: Change parameter of CheckMediaAccessPermission from GURL to URL::Origin | 5024297

* 5034217: [RWS] Remove CanonicalCookie::IsSameParty method | 5034217

* 5037192: Rewrite usage of RenderFrame::GetRoutingID | 5037192

* 5041802: Reland "Incorporate policy override for OOPPD feature" | 5041802

* chore: bump chromium in DEPS to 121.0.6143.0

* chore: bump chromium in DEPS to 121.0.6145.0

* chore: update chromium patches

* 5049986: Use std::unique_ptr for MenuItemView::submenu_ member. | 5049986

* 5041595: picture-in-picture: Add PictureInPictureOcclusionTracker | 5041595

* chore: update all patches

* chore: bump chromium in DEPS to 121.0.6147.0

* chore: update patches

* 5051069: Use base::FunctionRef for BrowserPluginGuestManager. | 5051069

* 5057330: [base] Remove base::Erase()/base::EraseIf() overloads for std::set | 5057330

* fixup! 5041802: Reland "Incorporate policy override for OOPPD feature" | 5041802

* 5017518: Remove PPAPI if NaCl is disabled | 5017518

* 5002232: [DevTools] Console Insights: move from build flag to Feature API | 5002232

* 4970322: [X11] Move utils into x11::Connection | 4970322

* 5048950: Let MenuModelAdapter::CreateMenu return a std::unique_ptr<>. | 5048950

* chore: update libcxx filenames

* use Context::Scope in RunScriptsAtDocument{Start,End}

* 4775128: content: Reuse CC instance for main frame navigations

4775128

* also wrap WebWorkerObserver::ContextWillDestroy with Context::Scope

* set LIBCPP_HARDENING_MODE

5014271

---------

Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com>
Co-authored-by: Samuel Attard <marshallofsound@electronjs.org>
Co-authored-by: Keeley Hammond <vertedinde@electronjs.org>
Co-authored-by: VerteDinde <keeleymhammond@gmail.com>
Co-authored-by: PatchUp <73610968+patchup[bot]@users.noreply.github.com>
Co-authored-by: Jeremy Rose <jeremya@chromium.org>

patches/chromium/disable_compositor_recycling.patch

@@ -6,7 +6,7 @@ Subject: fix: disabling compositor recycling
 Compositor recycling is useful for Chrome because there can be many tabs and spinning up a compositor for each one would be costly. In practice, Chrome uses the parent compositor code path of browser_compositor_view_mac.mm; the NSView of each tab is detached when it's hidden and attached when it's shown. For Electron, there is no parent compositor, so we're forced into the "own compositor" code path, which seems to be non-optimal and pretty ruthless in terms of the release of resources. Electron has no real concept of multiple tabs per window, so it should be okay to disable this ruthless recycling altogether in Electron.
 
 diff --git a/content/browser/renderer_host/render_widget_host_view_mac.mm b/content/browser/renderer_host/render_widget_host_view_mac.mm
-index 0d752ae48eb5f822dd80c369b726a7d411d71c78..8a481ce34374570e642cec21027b7dfe244e86d1 100644
+index 893cfb4908ab73a3aedca25d056d1ddfc64d3cea..fd10856ad338dadfc2a67d9761b6d3f9da225e5c 100644
 --- a/content/browser/renderer_host/render_widget_host_view_mac.mm
 +++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
 @@ -557,7 +557,11 @@