Auto merge of #17440 - emilio:bindgen-up, r=upsuper

Update bindgen to 0.26.1.

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components/style/Cargo.toml

@@ -77,7 +77,7 @@ kernel32-sys = "0.2"
 [build-dependencies]
 lazy_static = "0.2"
 log = "0.3"
-bindgen = { version = "0.25.5", optional = true }
+bindgen = { version = "0.26.1", optional = true }
 regex = {version = "0.2", optional = true}
 walkdir = "1.0"
 toml = {version = "0.2.1", optional = true, default-features = false}

components/style/build_gecko.rs

@@ -200,7 +200,7 @@ mod bindings {
 
     impl BuilderExt for Builder {
         fn get_initial_builder(build_type: BuildType) -> Builder {
-            let mut builder = Builder::default().no_unstable_rust();
+            let mut builder = Builder::default();
             for dir in SEARCH_PATHS.iter() {
                 builder = builder.clang_arg("-I").clang_arg(dir.to_str().unwrap());
             }