chromium: prepare for M134

pkgs/applications/networking/browsers/chromium/common.nix

@@ -216,6 +216,7 @@ let
 
   isElectron = packageName == "electron";
   needsCompgen = chromiumVersionAtLeast "133";
+  rustcVersion = buildPackages.rustc.version;
 
   chromiumDeps = lib.mapAttrs (
     path: args:
@@ -522,6 +523,9 @@ let
           revert = true;
           hash = "sha256-PuinMLhJ2W4KPXI5K0ujw85ENTB1wG7Hv785SZ55xnY=";
         })
+      ]
+      ++ lib.optionals (chromiumVersionAtLeast "134" && lib.versionOlder rustcVersion "1.86") [
+        ./patches/chromium-134-rust-adler2.patch
       ];
 
     postPatch =
@@ -726,7 +730,20 @@ let
         # Disable PGO because the profile data requires a newer compiler version (LLVM 14 isn't sufficient):
         chrome_pgo_phase = 0;
         clang_base_path = "${llvmCcAndBintools}";
-        use_qt = false;
+      }
+      // (
+        # M134 changed use_qt to use_qt5 (and use_qt6)
+        if chromiumVersionAtLeast "134" then
+          {
+            use_qt5 = false;
+            use_qt6 = false;
+          }
+        else
+          {
+            use_qt = false;
+          }
+      )
+      // {
         # To fix the build as we don't provide libffi_pic.a
         # (ld.lld: error: unable to find library -l:libffi_pic.a):
         use_system_libffi = true;
@@ -738,7 +755,7 @@ let
         enable_rust = true;
         # While we technically don't need the cache-invalidation rustc_version provides, rustc_version
         # is still used in some scripts (e.g. build/rust/std/find_std_rlibs.py).
-        rustc_version = buildPackages.rustc.version;
+        rustc_version = rustcVersion;
       }
       // lib.optionalAttrs (!(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) {
         # https://www.mail-archive.com/v8-users@googlegroups.com/msg14528.html

pkgs/applications/networking/browsers/chromium/depot_tools.py

@@ -114,7 +114,7 @@ chromium.get_deps(
         },
         **{
         f"checkout_{arch}": True
-        for arch in ["x64", "arm64", "arm", "x86", "mips", "mips64"]
+        for arch in ["x64", "arm64", "arm", "x86", "mips", "mips64", "ppc"]
         },
     },
     "",

pkgs/applications/networking/browsers/chromium/patches/chromium-134-rust-adler2.patch

@@ -0,0 +1,13 @@
+diff --git a/build/rust/std/BUILD.gn b/build/rust/std/BUILD.gn
+index 6b996aa1fe3865187d02c017e56c0918bcc9b8f4..68b085be200fa4f116aa709b9157c4d2efdf7d6a 100644
+--- a/build/rust/std/BUILD.gn
++++ b/build/rust/std/BUILD.gn
+@@ -89,7 +89,7 @@ if (toolchain_has_rust) {
+     # These are no longer present in the Windows toolchain.
+     stdlib_files += [
+       "addr2line",
+-      "adler2",
++      "adler",
+       "gimli",
+       "libc",
+       "memchr",