Files
electron/patches/chromium/disable_compositor_recycling.patch
trop[bot] 86196dc588 chore: bump chromium to 146.0.7645.0 (41-x-y) (#49497)
* chore: bump chromium in DEPS to 146.0.7643.0

Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com>

* chore: bump chromium in DEPS to 146.0.7645.0

Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com>

* chore: update patches

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

* 7402162: Refactor app shims to call ContentMain

Refs https://chromium-review.googlesource.com/c/chromium/src/+/7402162

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

* 7454282: Add master key management for HTTP Cache Encryption

Refs https://chromium-review.googlesource.com/c/chromium/src/+/7454282

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

* 7490440: Reland "Delete unused base::Contains()"

Refs https://chromium-review.googlesource.com/c/chromium/src/+/7490440

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

* chore: update patches

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

* 7414864: Pass CSSParserLocalContext down to CSSMathExpressionNodeParser

Refs https://chromium-review.googlesource.com/c/chromium/src/+/7414864

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

* 7460969: Move child_process_id.h to common

Refs https://chromium-review.googlesource.com/c/chromium/src/+/7460969

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

* 7474608: [api] Remove deprecated v8::PropertyCallbackInfo<T>::This()

Refs https://chromium-review.googlesource.com/c/v8/v8/+/7474608

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

* 7461067: [Viz] Rename kPreferGpuMemoryBuffer

Refs https://chromium-review.googlesource.com/c/chromium/src/+/7461067

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

* 7487174: Remove GLHelper

Refs https://chromium-review.googlesource.com/c/chromium/src/+/7487174

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

* 7457538: Set timeout from multi source page context fetcher

Refs https://chromium-review.googlesource.com/c/chromium/src/+/7457538

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

---------

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com>
Co-authored-by: David Sanders <dsanders11@ucsbalum.com>
2026-01-26 11:58:09 +01:00

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Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Andy Locascio <andy@slack-corp.com>
Date: Wed, 21 Aug 2019 12:09:10 -0700
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 082c24657917671fbee8f755786285af66640a92..d506230061f3bc969cc3cf9b998ec0321a44a1d2 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.mm
+++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
@@ -559,7 +559,11 @@
}
host()->WasHidden();
- browser_compositor_->SetRenderWidgetHostIsHidden(true);
+ // Consider the RWHV occluded only if it is not attached to a window
+ // (e.g. unattached BrowserView). Otherwise we treat it as visible to
+ // prevent unnecessary compositor recycling.
+ const bool unattached = ![GetInProcessNSView() window];
+ browser_compositor_->SetRenderWidgetHostIsHidden(unattached);
// Headless mode forces focus change propagation inside Focus(), since there
// is no NSWindow to deliver the normal focus change notifications. As a