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chore: cherry-pick 9bab573a37 from chromium (#30100)

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* chore: cherry-pick 9bab573a37 from chromium

Refs https://chromium-review.googlesource.com/c/chromium/src/+/3010140

* chore: update patches

Co-authored-by: deepak1556 <hop2deep@gmail.com>
Co-authored-by: PatchUp <73610968+patchup[bot]@users.noreply.github.com>
This commit is contained in:
trop[bot]
2021-07-12 22:07:50 -07:00
committed by GitHub
parent d09e7f851b
commit 299fa3a3c4
2 changed files with 49 additions and 0 deletions
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1
patches/chromium/.patches
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@@ -116,3 +116,4 @@ support_runtime_configurable_key_storage_on_linux_os_crypto.patch
make_keychain_service_account_optionally_configurable_at_runtime.patch
don_t_run_pcscan_notifythreadcreated_if_pcscan_is_disabled.patch
cherry-pick-cc20b36a5845.patch
set_svgimage_page_after_document_install.patch

48
patches/chromium/set_svgimage_page_after_document_install.patch Normal file
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@@ -0,0 +1,48 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fredrik=20S=C3=B6derqvist?= <fs@opera.com>
Date: Fri, 9 Jul 2021 08:44:55 +0000
Subject: Set SVGImage::page_ after document install
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
We can end up having the associated ImageResource call
SVGImage::ResetAnimation() before the Document has been associated with
the SVGImage's LocalFrame, but after the link to the initial Document
was severed, if a GC is triggered within that window and ends up
collecting the last observer of the ImageResource.
By assigning |SVGImage::page_| after the installing the document, we
close this hole since SVGImage::RootElement() (called by
SVGImage::ResetAnimation()) will now observe a null Page and return null
without attempting to dereference the document.
Bug: 1216190
Change-Id: I26e08848e5b9bd52e3377841eee35e4acc03d320
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3010140
Reviewed-by: Stephen Chenney <schenney@chromium.org>
Commit-Queue: Fredrik Söderquist <fs@opera.com>
Cr-Commit-Position: refs/heads/master@{#899922}
diff --git a/third_party/blink/renderer/core/svg/graphics/svg_image.cc b/third_party/blink/renderer/core/svg/graphics/svg_image.cc
index 0742d1e2e78b6bb0cd2582afd2133bb5eaf56387..96768e7fed1ba36ef5bba48d540f76e8ce50a608 100644
--- a/third_party/blink/renderer/core/svg/graphics/svg_image.cc
+++ b/third_party/blink/renderer/core/svg/graphics/svg_image.cc
@@ -853,12 +853,15 @@ Image::SizeAvailability SVGImage::DataChanged(bool all_data_received) {
// SVG Images are transparent.
frame->View()->SetBaseBackgroundColor(Color::kTransparent);
- page_ = page;
-
TRACE_EVENT0("blink", "SVGImage::dataChanged::load");
frame->ForceSynchronousDocumentInstall("image/svg+xml", Data());
+ // Set up our Page reference after installing our document. This avoids
+ // tripping on a non-existing (null) Document if a GC is triggered during the
+ // set up and ends up collecting the last owner/observer of this image.
+ page_ = page;
+
// Intrinsic sizing relies on computed style (e.g. font-size and
// writing-mode).
frame->GetDocument()->UpdateStyleAndLayoutTree();