Issue 6391 - Allow running the browser unit tests with Firefox

test/runners/chromium_process.js

Index: test/runners/chromium_process.js
===================================================================
rename from chromium_process.js
rename to test/runners/chromium_process.js
--- a/chromium_process.js
+++ b/test/runners/chromium_process.js
@@ -91,17 +91,17 @@
   {
     let err = new Error(`Cannot run browser tests, ${platform} is unsupported`);
     return Promise.reject(err);
   }
 
 
   return Promise.resolve().then(() =>
   {
-    let snapshotsDir = path.join(__dirname, "chromium-snapshots");
+    let snapshotsDir = path.join(__dirname, "..", "..", "chromium-snapshots");
     let chromiumDir = path.join(snapshotsDir,
                                 `chromium-${platform}-${CHROMIUM_REVISION}`);
     if (fs.existsSync(chromiumDir))
       return chromiumDir;
 
     if (!fs.existsSync(path.dirname(chromiumDir)))
       fs.mkdirSync(path.dirname(chromiumDir));
 
@@ -251,16 +251,18 @@
 function runScript(script, scriptName, scriptArgs)
 {
   return connectRemoteInterface().then(async client =>
   {
     try
     {
       let {Runtime, Log, Console} = client;
 
+      console.log("\nTests in Chromium\n");
+
       await Log.enable();
       Log.entryAdded(({entry}) =>
       {
         reportMessage(entry.text, entry.level);
       });
 
       await Console.enable();
       Console.messageAdded(({message}) =>