Reapply support for X11 screenshare (#28160)

Reapplies #27807 after [revert due to not building on
ARM](https://github.com/zed-industries/zed/pull/28141) by updating scap
to include [a fix to its build on
ARM](https://github.com/zed-industries/scap/commit/08f0a01417505cc0990b9931a37e5120db92e0d0)

Release Notes:

- N/A

---------

Co-authored-by: Marshall Bowers <git@maxdeviant.com>

Cargo.lock

@@ -3456,6 +3456,19 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "core-graphics-helmer-fork"
+version = "0.24.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32eb7c354ae9f6d437a6039099ce7ecd049337a8109b23d73e48e8ffba8e9cd5"
+dependencies = [
+ "bitflags 2.9.0",
+ "core-foundation 0.9.4",
+ "core-graphics-types 0.1.3",
+ "foreign-types 0.5.0",
+ "libc",
+]
+
 [[package]]
 name = "core-graphics-types"
 version = "0.1.3"
@@ -4431,6 +4444,12 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "dispatch"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd0c93bb4b0c6d9b77f4435b0ae98c24d17f1c45b2ff844c6151a07256ca923b"
+
 [[package]]
 name = "displaydoc"
 version = "0.2.5"
@@ -6101,6 +6120,7 @@ dependencies = [
  "refineable",
  "reqwest_client",
  "resvg",
+ "scap",
  "schemars",
  "seahash",
  "semantic_version",
@@ -8126,6 +8146,7 @@ dependencies = [
  "objc",
  "parking_lot",
  "postage",
+ "scap",
  "serde",
  "serde_json",
  "sha2",
@@ -9137,6 +9158,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "915b1b472bc21c53464d6c8461c9d3af805ba1ef837e1cac254428f4a77177b1"
 dependencies = [
  "malloc_buf",
+ "objc_exception",
+]
+
+[[package]]
+name = "objc-foundation"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1add1b659e36c9607c7aab864a76c7a4c2760cd0cd2e120f3fb8b952c7e22bf9"
+dependencies = [
+ "block",
+ "objc",
+ "objc_id",
 ]
 
 [[package]]
@@ -9341,6 +9374,24 @@ dependencies = [
  "objc2-foundation",
 ]
 
+[[package]]
+name = "objc_exception"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad970fb455818ad6cba4c122ad012fae53ae8b4795f86378bce65e4f6bab2ca4"
+dependencies = [
+ "cc",
+]
+
+[[package]]
+name = "objc_id"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c92d4ddb4bd7b50d730c215ff871754d0da6b2178849f8a2a2ab69712d0c073b"
+dependencies = [
+ "objc",
+]
+
 [[package]]
 name = "object"
 version = "0.36.7"
@@ -11147,6 +11198,15 @@ version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a993555f31e5a609f617c12db6250dedcac1b0a85076912c436e6fc9b2c8e6a3"
 
+[[package]]
+name = "quick-xml"
+version = "0.30.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eff6510e86862b57b210fd8cbe8ed3f0d7d600b9c2863cd4549a2e033c66e956"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "quick-xml"
 version = "0.32.0"
@@ -12375,6 +12435,27 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "scap"
+version = "0.0.8"
+source = "git+https://github.com/zed-industries/scap?rev=08f0a01417505cc0990b9931a37e5120db92e0d0#08f0a01417505cc0990b9931a37e5120db92e0d0"
+dependencies = [
+ "anyhow",
+ "cocoa 0.25.0",
+ "core-graphics-helmer-fork",
+ "log",
+ "objc",
+ "rand 0.8.5",
+ "screencapturekit",
+ "screencapturekit-sys",
+ "sysinfo",
+ "tao-core-video-sys",
+ "windows 0.61.1",
+ "windows-capture",
+ "x11",
+ "xcb",
+]
+
 [[package]]
 name = "schannel"
 version = "0.1.27"
@@ -12441,6 +12522,29 @@ version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9f6280af86e5f559536da57a45ebc84948833b3bee313a7dd25232e09c878a52"
 
+[[package]]
+name = "screencapturekit"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a5eeeb57ac94960cfe5ff4c402be6585ae4c8d29a2cf41b276048c2e849d64e"
+dependencies = [
+ "screencapturekit-sys",
+]
+
+[[package]]
+name = "screencapturekit-sys"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22411b57f7d49e7fe08025198813ee6fd65e1ee5eff4ebc7880c12c82bde4c60"
+dependencies = [
+ "block",
+ "dispatch",
+ "objc",
+ "objc-foundation",
+ "objc_id",
+ "once_cell",
+]
+
 [[package]]
 name = "scrypt"
 version = "0.11.0"
@@ -14003,6 +14107,18 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8bdb6fa0dfa67b38c1e66b7041ba9dcf23b99d8121907cd31c807a332f7a0bbb"
 
+[[package]]
+name = "tao-core-video-sys"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "271450eb289cb4d8d0720c6ce70c72c8c858c93dd61fc625881616752e6b98f6"
+dependencies = [
+ "cfg-if",
+ "core-foundation-sys",
+ "libc",
+ "objc",
+]
+
 [[package]]
 name = "tap"
 version = "1.0.1"
@@ -16672,6 +16788,20 @@ dependencies = [
  "windows-numerics",
 ]
 
+[[package]]
+name = "windows-capture"
+version = "1.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6001b777f61cafce437201de46a019ed7f4afed3b669f02e5ce4e0759164cb3e"
+dependencies = [
+ "clap",
+ "ctrlc",
+ "parking_lot",
+ "rayon",
+ "thiserror 1.0.69",
+ "windows 0.58.0",
+]
+
 [[package]]
 name = "windows-collections"
 version = "0.2.0"
@@ -17675,6 +17805,16 @@ dependencies = [
  "tap",
 ]
 
+[[package]]
+name = "x11"
+version = "2.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "502da5464ccd04011667b11c435cb992822c2c0dbde1770c988480d312a0db2e"
+dependencies = [
+ "libc",
+ "pkg-config",
+]
+
 [[package]]
 name = "x11-clipboard"
 version = "0.9.3"
@@ -17713,6 +17853,18 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "xcb"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1e2f212bb1a92cd8caac8051b829a6582ede155ccb60b5d5908b81b100952be"
+dependencies = [
+ "bitflags 1.3.2",
+ "libc",
+ "quick-xml 0.30.0",
+ "x11",
+]
+
 [[package]]
 name = "xcursor"
 version = "0.3.8"