Auto merge of #15140 - Manishearth:regen, r=emilio

Regen bindings

r? @heycam @emilio

Don't land yet.

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components/style/build_gecko.rs

@@ -388,10 +388,15 @@ mod bindings {
             "StyleTransition",
             "mozilla::UniquePtr",
             "mozilla::DefaultDelete",
+
+            // bindgen can't find these
+            "mozilla::binding_danger::TErrorResult",
+            "mozilla::binding_danger::AssertAndSuppressCleanupPolicy",
         ];
         let opaque_types = [
             "std::pair__PCCP",
             "std::namespace::atomic___base", "std::atomic__My_base",
+            "std::atomic___base",
             "nsAString_internal_char_traits",
             "nsAString_internal_incompatible_char_type",
             "nsACString_internal_char_traits",

components/style/gecko/media_queries.rs

@@ -8,7 +8,7 @@ use app_units::Au;
 use cssparser::{CssStringWriter, Parser, Token};
 use euclid::Size2D;
 use gecko_bindings::bindings;
-use gecko_bindings::structs::{nsCSSValue, nsCSSUnit, nsStringBuffer, nsresult};
+use gecko_bindings::structs::{nsCSSValue, nsCSSUnit, nsStringBuffer};
 use gecko_bindings::structs::{nsMediaExpression_Range, nsMediaFeature};
 use gecko_bindings::structs::{nsMediaFeature_ValueType, nsMediaFeature_RangeType, nsMediaFeature_RequirementFlags};
 use gecko_bindings::structs::RawGeckoPresContextOwned;
@@ -460,21 +460,12 @@ impl Expression {
     /// Returns whether this media query evaluates to true for the given device.
     pub fn matches(&self, device: &Device) -> bool {
         let mut css_value = nsCSSValue::null();
-        let result = unsafe {
+        unsafe {
             (self.feature.mGetter.unwrap())(device.pres_context,
                                             self.feature,
                                             &mut css_value)
         };
 
-        if result != nsresult::NS_OK {
-            // FIXME(emilio): This doesn't seem possible from reading gecko
-            // code, probably we should just clean up that function and return
-            // void.
-            error!("Media feature getter errored: {:?}, {:?}",
-                   result, Atom::from(unsafe { *self.feature.mName }));
-            return false;
-        }
-
         let value = match MediaExpressionValue::from_css_value(self, &css_value) {
             Some(v) => v,
             None => return false,