3 files changed, 24 insertions, 8 deletions
diff --git a/layout/style/nsCSSRuleProcessor.cpp b/layout/style/nsCSSRuleProcessor.cpp
index 8760a330e..810a8f8f0 100644
--- a/layout/style/nsCSSRuleProcessor.cpp
+++ b/layout/style/nsCSSRuleProcessor.cpp
@@ -1122,6 +1122,11 @@ InitSystemMetrics()
     sSystemMetrics->AppendElement(nsGkAtoms::mac_graphite_theme);
   }
 
+  rv = LookAndFeel::GetInt(LookAndFeel::eIntID_MacLionTheme, &metricResult);
+  if (NS_SUCCEEDED(rv) && metricResult) {
+    sSystemMetrics->AppendElement(nsGkAtoms::mac_lion_theme);
+  }
+
   rv = LookAndFeel::GetInt(LookAndFeel::eIntID_MacYosemiteTheme, &metricResult);
   if (NS_SUCCEEDED(rv) && metricResult) {
     sSystemMetrics->AppendElement(nsGkAtoms::mac_yosemite_theme);
@@ -1161,7 +1166,7 @@ InitSystemMetrics()
   if (NS_SUCCEEDED(rv) && metricResult) {
     sSystemMetrics->AppendElement(nsGkAtoms::touch_enabled);
   }
- 
+
   rv = LookAndFeel::GetInt(LookAndFeel::eIntID_SwipeAnimationEnabled,
                            &metricResult);
   if (NS_SUCCEEDED(rv) && metricResult) {
@@ -1539,7 +1544,7 @@ checkGenericEmptyMatches(Element* aElement,
   do {
     child = aElement->GetChildAt(++index);
     // stop at first non-comment (and non-whitespace for
-    // :-moz-only-whitespace) node        
+    // :-moz-only-whitespace) node
   } while (child && !IsSignificantChild(child, true, isWhitespaceSignificant));
   return (child == nullptr);
 }
@@ -2233,7 +2238,7 @@ static bool SelectorMatches(Element* aElement,
           NS_ASSERTION(hasAttr, "HasAttr lied");
           result = AttrMatchesValue(attr, value, isHTML);
         }
-        
+
         attr = attr->mNext;
       } while (attr && result);
     }
@@ -3085,7 +3090,7 @@ nsCSSRuleProcessor::AppendFontFaceRules(
     if (!aArray.AppendElements(cascade->mFontFaceRules))
       return false;
   }
-  
+
   return true;
 }
 
@@ -3129,7 +3134,7 @@ nsCSSRuleProcessor::AppendPageRules(
       return false;
     }
   }
-  
+
   return true;
 }
 
diff --git a/layout/style/nsMediaFeatures.cpp b/layout/style/nsMediaFeatures.cpp
index 5a54d5455..854236e51 100644
--- a/layout/style/nsMediaFeatures.cpp
+++ b/layout/style/nsMediaFeatures.cpp
@@ -706,6 +706,14 @@ nsMediaFeatures::features[] = {
     GetSystemMetric
   },
   {
+    &nsGkAtoms::_moz_mac_lion_theme,
+    nsMediaFeature::eMinMaxNotAllowed,
+    nsMediaFeature::eBoolInteger,
+    nsMediaFeature::eNoRequirements,
+    { &nsGkAtoms::mac_lion_theme },
+    GetSystemMetric
+  },
+  {
     &nsGkAtoms::_moz_mac_yosemite_theme,
     nsMediaFeature::eMinMaxNotAllowed,
     nsMediaFeature::eBoolInteger,
@@ -728,7 +736,7 @@ nsMediaFeatures::features[] = {
     nsMediaFeature::eNoRequirements,
     { &nsGkAtoms::windows_accent_color_is_dark },
     GetSystemMetric
-  },  
+  },
   {
     &nsGkAtoms::_moz_windows_compositor,
     nsMediaFeature::eMinMaxNotAllowed,
diff --git a/layout/style/test/test_media_queries.html b/layout/style/test/test_media_queries.html
index d503fad0b..59fe030c2 100644
--- a/layout/style/test/test_media_queries.html
+++ b/layout/style/test/test_media_queries.html
@@ -627,6 +627,7 @@ function run() {
   expression_should_be_parseable("-moz-overlay-scrollbars");
   expression_should_be_parseable("-moz-windows-default-theme");
   expression_should_be_parseable("-moz-mac-graphite-theme");
+  expression_should_be_parseable("-moz-mac-lion-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");
@@ -643,6 +644,7 @@ function run() {
   expression_should_be_parseable("-moz-overlay-scrollbars: 0");
   expression_should_be_parseable("-moz-windows-default-theme: 0");
   expression_should_be_parseable("-moz-mac-graphite-theme: 0");
+  expression_should_be_parseable("-moz-mac-lion-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");
@@ -659,6 +661,7 @@ function run() {
   expression_should_be_parseable("-moz-overlay-scrollbars: 1");
   expression_should_be_parseable("-moz-windows-default-theme: 1");
   expression_should_be_parseable("-moz-mac-graphite-theme: 1");
+  expression_should_be_parseable("-moz-mac-lion-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");
@@ -675,6 +678,7 @@ function run() {
   expression_should_not_be_parseable("-moz-overlay-scrollbars: -1");
   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-lion-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");
@@ -691,6 +695,7 @@ function run() {
   expression_should_not_be_parseable("-moz-overlay-scrollbars: true");
   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-lion-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");
@@ -844,5 +849,3 @@ function handle_iframe_onload(event)
 </pre>
 </body>
 </html>
-
-