Simplify Circle CI setup

As detailed in puppeteer/puppeteer#894, v73 of Chrome breaks in certain
Docker setups. To see this error, manually edit the puppeteer config in
node_modules to pass 'dumpio: true'. You should then see

node_1 | [0320/100336.123457:FATAL:gpu_data_manager_impl_private.cc(892)] The display compositor is frequently crashing. Goodbye.

To avoid this, I simplify the setup by sticking to CircleCI images that bundle Chrome and Firefox to make
updating the tuple painless. Once an image version has been specified in docker-compose.yml, t should
not be more than a matter of 'npm run test-docker-config' to test a new version of the image.

.circleci/config.yml

@@ -20,24 +20,15 @@ jobs:
           command: |
             npm config set strict-ssl false
             npm install
-
-            # install latest chrome unstable version
-            if node --version | grep -q '^v10'; then
-              wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
-              echo 'deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main' >> /etc/apt/sources.list.d/google.list
-              apt-get -qq update
-              apt-get -qq install -y --no-install-recommends google-chrome-stable
-              apt-get -qq install -y --no-install-recommends google-chrome-unstable
-            fi
       - run:
           name: Pre-Test
           # ESLint only supports Node >=4
           command: |
             if node --version | grep -q '^v10'; then
               npm run lint
 
-              npm run test-headless -- --chrome $(which google-chrome-stable) --allow-chrome-as-root
-              npm run test-webworker -- --chrome $(which google-chrome-stable) --allow-chrome-as-root
+              npm run test-headless  -- --chrome "$SINON_CHROME_BIN" --allow-chrome-as-root
+              npm run test-webworker -- --chrome "$SINON_CHROME_BIN" --allow-chrome-as-root
               npm run test-esm-bundle
 
               if [ -z "$CIRCLE_PULL_REQUESTS" ]; then
@@ -65,10 +56,9 @@ jobs:
   node-10:
     <<: *common-build
     docker:
-      - image: node:10
+      - image: circleci/node:10.15.1-browsers
     environment:
-        PUPPETEER_SKIP_CHROMIUM_DOWNLOAD: true
-        SINON_CHROME_BIN: /usr/bin/google-chrome-unstable
+        SINON_CHROME_BIN: /usr/bin/google-chrome-stable
 
 
 workflows:

docker-compose.yml

@@ -17,13 +17,13 @@ services:
     volumes:
       # This mounts the local directory - saving `npm install`
       - ./:/home/node/app
-    command: >
-      sh -c "
-      $$SINON_CHROME_BIN --version
 
-      npm run test-headless -- --chrome $$SINON_CHROME_BIN --allow-chrome-as-root
+    # There are differences between Circle CI and Docker `command`,
+    # forcing us to do this little workaround
+    command: >
+      sh -c " $$SINON_CHROME_BIN --version
+      && npm run test-headless -- --chrome $$SINON_CHROME_BIN --allow-chrome-as-root
       && npm run test-webworker -- --chrome $$SINON_CHROME_BIN --allow-chrome-as-root
       && npm run test-esm-bundle
       && npm run test-node
-
       "

package.json

@@ -22,6 +22,7 @@
     "test-webworker": "mochify --https-server 8080 test/webworker/webworker-support-assessment.js",
     "test-esm": "mocha -r esm test/es2015/module-support-assessment-test.mjs",
     "test-esm-bundle": "node test/es2015/check-esm-bundle-is-runnable.js",
+    "test-docker-image": "docker-compose up",
     "test": "run-s test-node test-headless test-webworker test-esm",
     "check-dependencies": "dependency-check package.json --unused --no-dev --ignore-module coveralls --ignore-module esm",
     "build": "run-p build-esm build-bundle",