Fix CI: resize /dev/shm and disable out-of-process storage service

GitHub Actions limits /dev/shm to 64 MB; Chromium 146's Mojo IPC bootstrap
needs more shared memory, causing the storage utility subprocess to fail
'global descriptor lookup: 7'. Fix by remounting /dev/shm at 512 MB in the
test job and adding --disable-features=StorageServiceOutOfProcess so the
storage service runs in-process instead of as a subprocess.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: linesight

.github/workflows/ci-linux.yml

@@ -126,6 +126,9 @@ jobs:
           cp -r build/artifacts/. cefpython3/
           chmod +x cefpython3/subprocess
 
+      - name: Resize /dev/shm for Chromium shared memory
+        run: sudo mount -o remount,size=512m /dev/shm
+
       - name: Run unit tests
         run: xvfb-run python unittests/_test_runner.py
         env:

unittests/main_test.py

@@ -158,6 +158,9 @@ def test_main(self):
             # OnContextInitialized from firing and browser creation fails.
             switches["in-process-gpu"] = ""
             switches["no-zygote"] = ""
+            # Run the storage service in-process so it doesn't need the
+            # Mojo bootstrap FD (global descriptor 7) that fails in CI.
+            switches["disable-features"] = "StorageServiceOutOfProcess"
         cef.Initialize(settings, switches=switches)
         subtest_message("cef.Initialize() ok")
 

unittests/osr_test.py

@@ -124,6 +124,9 @@ def test_osr(self):
             # OnContextInitialized from firing.
             switches["in-process-gpu"] = ""
             switches["no-zygote"] = ""
+            # Run the storage service in-process so it doesn't need the
+            # Mojo bootstrap FD (global descriptor 7) that fails in CI.
+            switches["disable-features"] = "StorageServiceOutOfProcess"
         browser_settings = {
             # Tweaking OSR performance (Issue #240)
             "windowless_frame_rate": 30,  # Default frame rate in CEF is 30