Interstitials/neterror: Enable scrollbars to follow system's dark theme.

Previously scrollbars always appeared light, even if a WebUI page was otherwise respecting dark mode. The upcoming FormControlsDarkMode feature allows webpages to specify whether scrollbars should follow the system's theme, by specifying a new <meta name="color-scheme"> tag. Repro instructions 1) Launch Chrome with the following flags to experience dark scrollbars. --enable-features=WebUIDarkMode,CSSColorSchemeUARendering \ --force-dark-mode 2) Go to chrome://inerstitials and open any interstitial category, observe scrollbars. 3) Go to a non-existing page (eg chrome://foo), observe scrollbars. Bug: 1142291 Change-Id: If85d49dcfe7eeb404eb4a472ce8a1dee135e57ac Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2521219 Commit-Queue: Rebekah Potter <rbpotter@chromium.org> Auto-Submit: dpapad <dpapad@chromium.org> Reviewed-by: Rebekah Potter <rbpotter@chromium.org> Cr-Commit-Position: refs/heads/master@{#824625}

Interstitials/neterror: Enable scrollbars to follow system's dark theme.
Previously scrollbars always appeared light, even if a WebUI page was otherwise respecting dark mode. The upcoming FormControlsDarkMode feature allows webpages to specify whether scrollbars should follow the system's theme, by specifying a new <meta name="color-scheme"> tag. Repro instructions 1) Launch Chrome with the following flags to experience dark scrollbars. --enable-features=WebUIDarkMode,CSSColorSchemeUARendering \ --force-dark-mode 2) Go to chrome://inerstitials and open any interstitial category, observe scrollbars. 3) Go to a non-existing page (eg chrome://foo), observe scrollbars. Bug: 1142291 Change-Id: If85d49dcfe7eeb404eb4a472ce8a1dee135e57ac Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2521219 Commit-Queue: Rebekah Potter <rbpotter@chromium.org> Auto-Submit: dpapad <dpapad@chromium.org> Reviewed-by: Rebekah Potter <rbpotter@chromium.org> Cr-Commit-Position: refs/heads/master@{#824625}
2d32e03b · dpapad · Commit Bot · 5432d271 · 2d32e03b · 2d32e03b
Commit 2d32e03b authored Nov 05, 2020 by dpapad Committed by Commit Bot Nov 05, 2020
2 changed files
--- a/components/neterror/resources/neterror.html
+++ b/components/neterror/resources/neterror.html
@@ -2,6 +2,7 @@
 <html dir="$i18n{textdirection}" lang="$i18n{language}">
 <head>
  <meta charset="utf-8">
+  <meta name="color-scheme" content="light dark">
  <meta name="theme-color" content="#fff">
  <meta name="viewport" content="width=device-width, initial-scale=1.0,
                                 maximum-scale=1.0, user-scalable=no">

--- a/components/security_interstitials/core/browser/resources/interstitial_large.html
+++ b/components/security_interstitials/core/browser/resources/interstitial_large.html
@@ -2,6 +2,7 @@
 <html dir="$i18n{textdirection}" lang="$i18n{language}">
 <head>
  <meta charset="utf-8">
+  <meta name="color-scheme" content="light dark">
  <meta name="theme-color" content="#fff">
  <meta name="viewport"
      content="initial-scale=1, minimum-scale=1, width=device-width">