Auto merge of #12517 - Manishearth:sync, r=heycam

Resync bindings

Corresponds to the tmp-stylo-rebase branch on servo/gecko-dev

Still testing locally

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ports/geckolib/gecko_bindings/bindings.rs

@@ -293,7 +293,7 @@ extern "C" {
     pub fn Servo_StyleSheetHasRules(sheet: *mut RawServoStyleSheet) -> bool;
     pub fn Servo_InitStyleSet() -> *mut RawServoStyleSet;
     pub fn Servo_DropStyleSet(set: *mut RawServoStyleSet);
-    pub fn Servo_ParseStyleAttribute(bytes: *const u8, length: u8,
+    pub fn Servo_ParseStyleAttribute(bytes: *const u8, length: u32,
                                      cache: *mut nsHTMLCSSStyleSheet)
      -> *mut ServoDeclarationBlock;
     pub fn Servo_DropDeclarationBlock(declarations:
@@ -305,7 +305,7 @@ extern "C" {
                                                   *mut ServoDeclarationBlock);
     pub fn Servo_ClearDeclarationBlockCachePointer(declarations:
                                                        *mut ServoDeclarationBlock);
-    pub fn Servo_CSSSupports(property: *const u8, property_length: u32,
+    pub fn Servo_CSSSupports(name: *const u8, name_length: u32,
                              value: *const u8, value_length: u32) -> bool;
     pub fn Servo_GetComputedValues(node: *mut RawGeckoNode)
      -> *mut ServoComputedValues;