diff --git a/Cargo.lock b/Cargo.lock
index 63096eaceb0..ae1ca42f20e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2352,6 +2352,14 @@ name = "regex-syntax"
 version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "ron"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rust-webvr"
 version = "0.9.10"
@@ -3492,6 +3500,8 @@ dependencies = [
  "num-traits 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "plane-split 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ron 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "thread_profiler 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3893,6 +3903,7 @@ dependencies = [
 "checksum ref_slice 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "825740057197b7d43025e7faf6477eaabc03434e153233da02d1f44602f71527"
 "checksum regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1731164734096285ec2a5ec7fea5248ae2f5485b3feeb0115af4fda2183b2d1b"
 "checksum regex-syntax 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ad890a5eef7953f55427c50575c680c42841653abd2b028b68cd223d157f62db"
+"checksum ron 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "da06feaa07f69125ab9ddc769b11de29090122170b402547f64b86fe16ebc399"
 "checksum rust-webvr 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)" = "9629ce5b5c3cda05259d225e639851daf39c55c170358d3056205dd205deaab2"
 "checksum rust-webvr-api 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "712e22ba3c03a7075b40842ae91029a0ab96a81f95e97c0cf623800ec0cbac07"
 "checksum rustc-demangle 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "3058a43ada2c2d0b92b3ae38007a2d0fa5e9db971be260e0171408a4ff471c95"
diff --git a/components/compositing/Cargo.toml b/components/compositing/Cargo.toml
index 88cd1c47977..736fef8a57d 100644
--- a/components/compositing/Cargo.toml
+++ b/components/compositing/Cargo.toml
@@ -27,5 +27,5 @@ servo_geometry = {path = "../geometry"}
 servo_url = {path = "../url"}
 style_traits = {path = "../style_traits"}
 time = "0.1.17"
-webrender = {git = "https://github.com/servo/webrender"}
+webrender = {git = "https://github.com/servo/webrender", features = ["capture"]}
 webrender_api = {git = "https://github.com/servo/webrender", features = ["ipc"]}