no-bug - Add support for accent color on titlebar preference for windows 11, c=no-component, t=feat

Author: mr-cheffy

src/browser/base/content/browser-xhtml.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/base/content/browser.xhtml b/browser/base/content/browser.xhtml
-index 8f8c5536cb6e54300897180ca3f950974c60e930..79305485631f14712d8b2674f477b641ec53fcd6 100644
+index 8f8c5536cb6e54300897180ca3f950974c60e930..403f821f561a2dfcf6ad23db7e61712aac867716 100644
 --- a/browser/base/content/browser.xhtml
 +++ b/browser/base/content/browser.xhtml
 @@ -26,6 +26,7 @@
@@ -26,7 +26,7 @@ index 8f8c5536cb6e54300897180ca3f950974c60e930..79305485631f14712d8b2674f477b641
      </vbox>
    </html:template>
 
-+<hbox id="zen-main-app-wrapper" flex="1" persist="zen-compact-mode">
++<hbox id="zen-main-app-wrapper" flex="1" persist="zen-compact-mode" class="browser-toolbox-background">
  #include navigator-toolbox.inc.xhtml
 
  #include browser-box.inc.xhtml

src/browser/themes/windows/browser-css.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/themes/windows/browser.css b/browser/themes/windows/browser.css
-index 007aec91e089a1d2df20235890b268b820b0a529..ac0592cbcec62ffefb58b491dff48749852f2d88 100644
+index 007aec91e089a1d2df20235890b268b820b0a529..a03a0d7b7837f6315f47f76a4491bf08d96e00e0 100644
 --- a/browser/themes/windows/browser.css
 +++ b/browser/themes/windows/browser.css
 @@ -31,7 +31,6 @@
@@ -10,3 +10,12 @@ index 007aec91e089a1d2df20235890b268b820b0a529..ac0592cbcec62ffefb58b491dff48749
      }
    }
 
+@@ -56,7 +55,7 @@
+ 
+ /* This is needed for Windows 10, see bug 1961257 */
+ @media (-moz-windows-accent-color-in-titlebar) {
+-  :root[customtitlebar][sizemode="normal"] #navigator-toolbox {
++  :root[customtitlebar][sizemode="normal"] #browser {
+     border-top: .5px solid ActiveBorder;
+     &:-moz-window-inactive {
+       border-top-color: InactiveBorder;