Auto merge of #25814 - szeged:mmatyas__webgl_fns_framebuf_texlayer, r=jdm

Add support for WebGL2 FramebufferTextureLayer

Adds support for `FramebufferTextureLayer` WebGL2 call.

See: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.4

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Depends on #25798.

cc @jdm @zakorgy

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

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1 files changed, 3 insertions, 0 deletions

diff --git a/components/canvas_traits/webgl.rs b/components/canvas_traits/webgl.rs
index 8b689f6da10..22e47ad9bb4 100644
--- a/components/canvas_traits/webgl.rs
+++ b/components/canvas_traits/webgl.rs
@@ -535,6 +535,7 @@ pub enum WebGLCommand {
     ClearBufferfi(u32, i32, f32, i32),
     InvalidateFramebuffer(u32, Vec<u32>),
     InvalidateSubFramebuffer(u32, Vec<u32>, i32, i32, i32, i32),
+    FramebufferTextureLayer(u32, u32, Option<WebGLTextureId>, i32, i32),
 }
 
 macro_rules! nonzero_type {
@@ -1074,5 +1075,7 @@ pub struct GLLimits {
     pub max_vertex_uniform_components: u32,
     pub max_fragment_uniform_blocks: u32,
     pub max_fragment_uniform_components: u32,
+    pub max_3d_texture_size: u32,
+    pub max_array_texture_layers: u32,
     pub uniform_buffer_offset_alignment: u32,
 }