6 files changed, 38 insertions, 0 deletions
diff --git a/layout/base/nsPresContext.cpp b/layout/base/nsPresContext.cpp
index b27e6d0e3..d9f7b368c 100644
--- a/layout/base/nsPresContext.cpp
+++ b/layout/base/nsPresContext.cpp
@@ -1696,6 +1696,9 @@ nsPresContext::SysColorChangedInternal()
     sLookAndFeelChanged = false;
   }
 
+  // Invalidate cached '-moz-windows-accent-color-applies' media query:
+  nsCSSRuleProcessor::FreeSystemMetrics();
+
   // Reset default background and foreground colors for the document since
   // they may be using system colors
   GetDocumentColorPreferences();
diff --git a/layout/style/nsCSSKeywordList.h b/layout/style/nsCSSKeywordList.h
index febdd32c6..933ff6e7b 100644
--- a/layout/style/nsCSSKeywordList.h
+++ b/layout/style/nsCSSKeywordList.h
@@ -742,6 +742,8 @@ CSS_KEY(button-focus, button_focus)
 CSS_KEY(-moz-win-media-toolbox, _moz_win_media_toolbox)
 CSS_KEY(-moz-win-communications-toolbox, _moz_win_communications_toolbox)
 CSS_KEY(-moz-win-browsertabbar-toolbox, _moz_win_browsertabbar_toolbox)
+CSS_KEY(-moz-win-accentcolor, _moz_win_accentcolor)
+CSS_KEY(-moz-win-accentcolortext, _moz_win_accentcolortext)
 CSS_KEY(-moz-win-mediatext, _moz_win_mediatext)
 CSS_KEY(-moz-win-communicationstext, _moz_win_communicationstext)
 CSS_KEY(-moz-win-glass, _moz_win_glass)
diff --git a/layout/style/nsCSSProps.cpp b/layout/style/nsCSSProps.cpp
index ec28d06f8..f3a7f898d 100644
--- a/layout/style/nsCSSProps.cpp
+++ b/layout/style/nsCSSProps.cpp
@@ -1174,6 +1174,8 @@ const KTableEntry nsCSSProps::kColorKTable[] = {
   { eCSSKeyword__moz_oddtreerow, LookAndFeel::eColorID__moz_oddtreerow },
   { eCSSKeyword__moz_visitedhyperlinktext, NS_COLOR_MOZ_VISITEDHYPERLINKTEXT },
   { eCSSKeyword_currentcolor, NS_COLOR_CURRENTCOLOR },
+  { eCSSKeyword__moz_win_accentcolor, LookAndFeel::eColorID__moz_win_accentcolor },
+  { eCSSKeyword__moz_win_accentcolortext, LookAndFeel::eColorID__moz_win_accentcolortext },
   { eCSSKeyword__moz_win_mediatext, LookAndFeel::eColorID__moz_win_mediatext },
   { eCSSKeyword__moz_win_communicationstext, LookAndFeel::eColorID__moz_win_communicationstext },
   { eCSSKeyword__moz_nativehyperlinktext, LookAndFeel::eColorID__moz_nativehyperlinktext },
diff --git a/layout/style/nsCSSRuleProcessor.cpp b/layout/style/nsCSSRuleProcessor.cpp
index 07a4ef57b..8760a330e 100644
--- a/layout/style/nsCSSRuleProcessor.cpp
+++ b/layout/style/nsCSSRuleProcessor.cpp
@@ -1127,6 +1127,16 @@ InitSystemMetrics()
     sSystemMetrics->AppendElement(nsGkAtoms::mac_yosemite_theme);
   }
 
+  rv = LookAndFeel::GetInt(LookAndFeel::eIntID_WindowsAccentColorApplies, &metricResult);
+  if (NS_SUCCEEDED(rv) && metricResult) {
+    sSystemMetrics->AppendElement(nsGkAtoms::windows_accent_color_applies);
+  }
+
+  rv = LookAndFeel::GetInt(LookAndFeel::eIntID_WindowsAccentColorIsDark, &metricResult);
+  if (NS_SUCCEEDED(rv) && metricResult) {
+    sSystemMetrics->AppendElement(nsGkAtoms::windows_accent_color_is_dark);
+  }
+
   rv = LookAndFeel::GetInt(LookAndFeel::eIntID_DWMCompositor, &metricResult);
   if (NS_SUCCEEDED(rv) && metricResult) {
     sSystemMetrics->AppendElement(nsGkAtoms::windows_compositor);
diff --git a/layout/style/nsMediaFeatures.cpp b/layout/style/nsMediaFeatures.cpp
index c07a4123e..052ce58e8 100644
--- a/layout/style/nsMediaFeatures.cpp
+++ b/layout/style/nsMediaFeatures.cpp
@@ -716,6 +716,22 @@ nsMediaFeatures::features[] = {
     GetSystemMetric
   },
   {
+    &nsGkAtoms::_moz_windows_accent_color_applies,
+    nsMediaFeature::eMinMaxNotAllowed,
+    nsMediaFeature::eBoolInteger,
+    nsMediaFeature::eNoRequirements,
+    { &nsGkAtoms::windows_accent_color_applies },
+    GetSystemMetric
+  },
+  {
+    &nsGkAtoms::_moz_windows_accent_color_is_dark,
+    nsMediaFeature::eMinMaxNotAllowed,
+    nsMediaFeature::eBoolInteger,
+    nsMediaFeature::eNoRequirements,
+    { &nsGkAtoms::windows_accent_color_is_dark },
+    GetSystemMetric
+  },  
+  {
     &nsGkAtoms::_moz_windows_compositor,
     nsMediaFeature::eMinMaxNotAllowed,
     nsMediaFeature::eBoolInteger,
diff --git a/layout/style/test/test_media_queries.html b/layout/style/test/test_media_queries.html
index 1edac15ae..479306a55 100644
--- a/layout/style/test/test_media_queries.html
+++ b/layout/style/test/test_media_queries.html
@@ -628,6 +628,7 @@ function run() {
   expression_should_be_parseable("-moz-windows-default-theme");
   expression_should_be_parseable("-moz-mac-graphite-theme");
   expression_should_be_parseable("-moz-mac-yosemite-theme");
+  expression_should_be_parseable("-moz-windows-accent-color-applies");
   expression_should_be_parseable("-moz-windows-compositor");
   expression_should_be_parseable("-moz-windows-classic");
   expression_should_be_parseable("-moz-windows-glass");
@@ -643,6 +644,7 @@ function run() {
   expression_should_be_parseable("-moz-windows-default-theme: 0");
   expression_should_be_parseable("-moz-mac-graphite-theme: 0");
   expression_should_be_parseable("-moz-mac-yosemite-theme: 0");
+  expression_should_be_parseable("-moz-windows-accent-color-applies: 0");
   expression_should_be_parseable("-moz-windows-compositor: 0");
   expression_should_be_parseable("-moz-windows-classic: 0");
   expression_should_be_parseable("-moz-windows-glass: 0");
@@ -658,6 +660,7 @@ function run() {
   expression_should_be_parseable("-moz-windows-default-theme: 1");
   expression_should_be_parseable("-moz-mac-graphite-theme: 1");
   expression_should_be_parseable("-moz-mac-yosemite-theme: 1");
+  expression_should_be_parseable("-moz-windows-accent-color-applies: 1");
   expression_should_be_parseable("-moz-windows-compositor: 1");
   expression_should_be_parseable("-moz-windows-classic: 1");
   expression_should_be_parseable("-moz-windows-glass: 1");
@@ -673,6 +676,7 @@ function run() {
   expression_should_not_be_parseable("-moz-windows-default-theme: -1");
   expression_should_not_be_parseable("-moz-mac-graphite-theme: -1");
   expression_should_not_be_parseable("-moz-mac-yosemite-theme: -1");
+  expression_should_not_be_parseable("-moz-windows-accent-color-applies: -1");
   expression_should_not_be_parseable("-moz-windows-compositor: -1");
   expression_should_not_be_parseable("-moz-windows-classic: -1");
   expression_should_not_be_parseable("-moz-windows-glass: -1");
@@ -688,6 +692,7 @@ function run() {
   expression_should_not_be_parseable("-moz-windows-default-theme: true");
   expression_should_not_be_parseable("-moz-mac-graphite-theme: true");
   expression_should_not_be_parseable("-moz-mac-yosemite-theme: true");
+  expression_should_not_be_parseable("-moz-windows-accent-color-applies: true");
   expression_should_not_be_parseable("-moz-windows-compositor: true");
   expression_should_not_be_parseable("-moz-windows-classic: true");
   expression_should_not_be_parseable("-moz-windows-glass: true");