Auto merge of #29938 - mrobinson:remove-domtotexture, r=jdm

Remove the DOMToTexture feature

This relies on WebRender's frame output API, `set_output_image_handler`,
which has been removed from the latest upstream [1]. It's sad to remove
this feature, which was probably a lot of work to implement, but it
seems difficult to patch WebRender to restore this functionality.

Fixes #29936.

1. https://hg.mozilla.org/mozilla-central/rev/361521e3c52324809553c555fb066d50f023d9bf

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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 #29936.
- [x] These changes do not require tests because they remove functionality.

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Cargo.lock

@@ -2171,9 +2171,9 @@ dependencies = [
 
 [[package]]
 name = "gleam"
-version = "0.12.1"
+version = "0.12.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fdef5b9df6d3a261b80a5ac55e13bf93945725df2463c1b0a2e5a527dce0d37"
+checksum = "a6da1b0a7e3f0833efe2c59f11c0e196d6208735018693c340eded4bd7aacb49"
 dependencies = [
  "gl_generator 0.14.0",
 ]
@@ -2214,9 +2214,9 @@ checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
 
 [[package]]
 name = "glslopt"
-version = "0.1.8"
+version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6c6fe80551c01b577d6f63f2227c485c0cb6827defeaa13dacbf84b42012853"
+checksum = "74a3f5c04450dfdadb4b08f6e5ee6f5110f674de1acbd6199bfec68392a8cbaf"
 dependencies = [
  "cc",
 ]
@@ -2617,9 +2617,9 @@ dependencies = [
 
 [[package]]
 name = "heck"
-version = "0.3.1"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
+checksum = "6d621efb26863f0e9924c6ac577e8275e5e6b77455db64ffa6c65c904e9e132c"
 dependencies = [
  "unicode-segmentation",
 ]
@@ -2775,16 +2775,17 @@ dependencies = [
 
 [[package]]
 name = "image"
-version = "0.23.10"
+version = "0.23.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "985fc06b1304d19c28d5c562ed78ef5316183f2b0053b46763a0b94862373c34"
+checksum = "24ffcb7e7244a9bf19d35bf2883b9c080c4ced3c07a9895572178cdb8f13f6a1"
 dependencies = [
  "bytemuck",
  "byteorder",
+ "color_quant",
  "num-iter",
- "num-rational 0.3.0",
+ "num-rational 0.3.2",
  "num-traits",
- "png 0.16.6",
+ "png 0.16.8",
 ]
 
 [[package]]
@@ -3688,9 +3689,9 @@ dependencies = [
 
 [[package]]
 name = "mio-extras"
-version = "2.0.5"
+version = "2.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46e73a04c2fa6250b8d802134d56d554a9ec2922bf977777c805ea5def61ce40"
+checksum = "52403fe290012ce777c4626790c8951324a2b9e3316b3143779c72b029742f19"
 dependencies = [
  "lazycell",
  "log",
@@ -4043,9 +4044,9 @@ dependencies = [
 
 [[package]]
 name = "num-iter"
-version = "0.1.40"
+version = "0.1.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dfb0800a0291891dd9f4fe7bd9c19384f98f7fbe0cd0f39a2c6b88b9868bbc00"
+checksum = "7d03e6c028c5dc5cac6e2dec0efda81fc887605bb3d884578bb6d6bf7514e252"
 dependencies = [
  "autocfg",
  "num-integer",
@@ -4065,9 +4066,9 @@ dependencies = [
 
 [[package]]
 name = "num-rational"
-version = "0.3.0"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5b4d7360f362cfb50dde8143501e6940b22f644be75a4cc90b2d81968908138"
+checksum = "12ac428b1cb17fce6f731001d307d351ec70a6d202fc2e60f7d4c5e42d8f4f07"
 dependencies = [
  "autocfg",
  "num-integer",
@@ -4571,9 +4572,9 @@ dependencies = [
 
 [[package]]
 name = "png"
-version = "0.16.6"
+version = "0.16.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c150bf7479fafe3dd8740dbe48cc33b2a3efb7b0fe3483aced8bbc39f6d0238d"
+checksum = "3c3287920cb847dee3de33d301c463fba14dda99db24214ddf93f83d3021f4c6"
 dependencies = [
  "bitflags",
  "crc32fast",
@@ -4630,9 +4631,9 @@ checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.59"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6aeca18b86b413c660b781aa319e4e2648a3e6f9eadc9b47e9038e6fe9f3451b"
+checksum = "7b368fba921b0dce7e60f5e04ec15e565b3303972b42bcfde1d0713b881959eb"
 dependencies = [
  "unicode-ident",
 ]
@@ -6619,9 +6620,9 @@ checksum = "1dd624098567895118886609431a7c3b8f516e41d30e0643f03d94592a147e36"
 
 [[package]]
 name = "unicode-width"
-version = "0.1.9"
+version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ed742d4ea2bd1176e236172c8429aaf54486e7ac098db29ffe6529e0ce50973"
+checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
 
 [[package]]
 name = "unicode-xid"
@@ -7008,7 +7009,7 @@ dependencies = [
  "fxhash",
  "gleam",
  "glslopt",
- "image 0.23.10",
+ "image 0.23.14",
  "lazy_static",
  "libc",
  "log",
@@ -7327,9 +7328,9 @@ dependencies = [
 
 [[package]]
 name = "ws"
-version = "0.9.1"
+version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c51a2c47b5798ccc774ffb93ff536aec7c4275d722fd9c740c83cdd1af1f2d94"
+checksum = "25fe90c75f236a0a00247d5900226aea4f2d7b05ccc34da9e7a8880ff59b5848"
 dependencies = [
  "byteorder",
  "bytes 0.4.12",