Revert "Auto merge of #18114 - emilio:revert-webgl-refactor, r=nox"

This reverts commit 4d10d39e8fe841c5fe2ac58da2daaa13c10c140e, reversing
changes made to ee94e2b7c0bd327abe8f9545b2a1f792f67a2bdd.

1 files changed, 1 insertions, 7 deletions

diff --git a/components/script_traits/script_msg.rs b/components/script_traits/script_msg.rs
index 4fd8fca5c7f..156f85a2be7 100644
--- a/components/script_traits/script_msg.rs
+++ b/components/script_traits/script_msg.rs
@@ -12,7 +12,7 @@ use LoadData;
 use MozBrowserEvent;
 use WorkerGlobalScopeInit;
 use WorkerScriptLoadOrigin;
-use canvas_traits::CanvasMsg;
+use canvas_traits::canvas::CanvasMsg;
 use devtools_traits::{ScriptToDevtoolsControlMsg, WorkerId};
 use euclid::{Point2D, Size2D, TypedSize2D};
 use ipc_channel::ipc::IpcSender;
@@ -21,7 +21,6 @@ use msg::constellation_msg::{Key, KeyModifiers, KeyState};
 use net_traits::CoreResourceMsg;
 use net_traits::request::RequestInit;
 use net_traits::storage_thread::StorageType;
-use offscreen_gl_context::{GLContextAttributes, GLLimits};
 use servo_url::ImmutableOrigin;
 use servo_url::ServoUrl;
 use style_traits::CSSPixel;
@@ -78,11 +77,6 @@ pub enum ScriptMsg {
     /// Requests that a new 2D canvas thread be created. (This is done in the constellation because
     /// 2D canvases may use the GPU and we don't want to give untrusted content access to the GPU.)
     CreateCanvasPaintThread(Size2D<i32>, IpcSender<IpcSender<CanvasMsg>>),
-    /// Requests that a new WebGL thread be created. (This is done in the constellation because
-    /// WebGL uses the GPU and we don't want to give untrusted content access to the GPU.)
-    CreateWebGLPaintThread(Size2D<i32>,
-                           GLContextAttributes,
-                           IpcSender<Result<(IpcSender<CanvasMsg>, GLLimits), String>>),
     /// Notifies the constellation that this frame has received focus.
     Focus,
     /// Forward an event that was sent to the parent window.