Auto merge of #23516 - pcwalton:webrenderup, r=pcwalton,jdm

Upgrade WebRender

This is against an old Servo because I can't build current Servo due to compile errors in RNG crates. I verified that it starts up.

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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix #23516
- [x] There are tests for these changes

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components/script/dom/screen.rs

@@ -16,7 +16,7 @@ use euclid::TypedSize2D;
 use profile_traits::ipc;
 use script_traits::ScriptMsg;
 use style_traits::CSSPixel;
-use webrender_api::DeviceIntSize;
+use webrender_api::units::DeviceIntSize;
 
 #[dom_struct]
 pub struct Screen {

components/script/dom/window.rs

@@ -132,7 +132,8 @@ use style::str::HTML_SPACE_CHARACTERS;
 use style::stylesheets::CssRuleType;
 use style_traits::{CSSPixel, DevicePixel, ParsingMode};
 use url::Position;
-use webrender_api::{DeviceIntPoint, DeviceIntSize, DocumentId, ExternalScrollId, RenderApiSender};
+use webrender_api::units::{DeviceIntPoint, DeviceIntSize};
+use webrender_api::{DocumentId, ExternalScrollId, RenderApiSender};
 use webvr_traits::WebVRMsg;
 
 /// Current state of the window object