Move ProcessThrottler to AuxiliaryProcessProxy

[pvollan]

868e634

Move ProcessThrottler to AuxiliaryProcessProxy
https://bugs.webkit.org/show_bug.cgi?id=269136
rdar://122708925

Reviewed by Chris Dumez.

We can simplify the code by moving the ProcessThrottler object from every subclass to the
AuxiliaryProcessProxy base class.

This was previously landed in <https://commits.webkit.org/275195@main> and later reverted
because it introduced a crash. The reason for the crash was that the ProcessThrottler
was being deleted later since it moved to AuxiliaryProcessProxy. That could result in
pure virtual function calls in the AuxiliaryProcessProxy destructor, since the
ProcessThrottler calls virtual methods in AuxiliaryProcessProxy. This patch addresses
this crash by calling didDisconnectFromProcess in AuxiliaryProcessProxy::shutDownProcess.

* Source/WebKit/UIProcess/AuxiliaryProcessProxy.h:
(WebKit::AuxiliaryProcessProxy::sendProcessDidResume):
(WebKit::AuxiliaryProcessProxy::clientName const):
* Source/WebKit/UIProcess/AuxiliaryProcessProxy.cpp:
(WebKit::AuxiliaryProcessProxy::didFinishLaunching):
* Source/WebKit/UIProcess/AuxiliaryProcessProxy.h:
(WebKit::AuxiliaryProcessProxy::throttler):
* Source/WebKit/UIProcess/GPU/GPUProcessProxy.cpp:
(WebKit::GPUProcessProxy::didFinishLaunching):
* Source/WebKit/UIProcess/GPU/GPUProcessProxy.h:
* Source/WebKit/UIProcess/Model/ModelProcessProxy.cpp:
(WebKit::ModelProcessProxy::didFinishLaunching):
* Source/WebKit/UIProcess/Model/ModelProcessProxy.h:
* Source/WebKit/UIProcess/Network/NetworkProcessProxy.cpp:
(WebKit::NetworkProcessProxy::didFinishLaunching):
* Source/WebKit/UIProcess/Network/NetworkProcessProxy.h:
* Source/WebKit/UIProcess/WebProcessProxy.cpp:
(WebKit::WebProcessProxy::didFinishLaunching):
* Source/WebKit/UIProcess/WebProcessProxy.h:
(WebKit::WebProcessProxy::throttler const): Deleted.

Canonical link: https://commits.webkit.org/275528@main

9495dcb

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	⏳ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	⏳ 🧪 api-wpe
	✅ 🧪 ios-wk2-wpt		✅ 🛠 gtk
	✅ 🧪 api-ios	✅ 🧪 mac-wk2	⏳ 🧪 gtk-wk2
	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	⏳ 🧪 api-gtk
	✅ 🛠 tv-sim
	✅ 🛠 watch
✅ 🛠 🧪 unsafe-merge	✅ 🛠 watch-sim

[webkit-early-warning-system]

EWS run on previous version of this PR (hash d260384)

Details

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	🧪 api-mac	🧪 api-wpe
	⏳ 🧪 ios-wk2-wpt		✅ 🛠 gtk
	⏳ 🧪 api-ios	🧪 mac-wk2	🧪 gtk-wk2
	🛠 tv	⏳ 🧪 mac-AS-debug-wk2	🧪 api-gtk
	✅ 🛠 tv-sim
	🛠 watch
	🛠 watch-sim

[webkit-early-warning-system]

EWS run on current version of this PR (hash 9495dcb)

Details

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	⏳ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	⏳ 🧪 api-wpe
	✅ 🧪 ios-wk2-wpt		✅ 🛠 gtk
	✅ 🧪 api-ios	✅ 🧪 mac-wk2	⏳ 🧪 gtk-wk2
	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	⏳ 🧪 api-gtk
	✅ 🛠 tv-sim
	✅ 🛠 watch
✅ 🛠 🧪 unsafe-merge	✅ 🛠 watch-sim

[webkit-commit-queue]

Committed 275528@main (868e634): https://commits.webkit.org/275528@main

Reviewed commits have been landed. Closing PR #25315 and removing active labels.