DevTools: webui receives document load message upon navigation, even for cross-domain navigations. …

third_party/WebKit/Source/devtools/scripts/chrome_debug_launcher/launch_chrome.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var childProcess = require("child_process");
 var fs = require("fs");
 var path = require("path");
 var shell = childProcess.execSync;
 
 var utils = require("../utils");
@@ skipping 50 matching lines @@
             fs.accessSync(chromeCanaryPath);
             break;
         } catch (e) {
         }
     }
     launchChrome(chromeCanaryPath, chromeArgs);
 }
 
 function launchChromeMac()
 {
-    var lsregister = "/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister";
-    var chromeCanaryPath = shellOutput(`${lsregister} -dump | grep -i 'applications/google chrome canary.app$' | awk '{$1=""; print $0}' | head -n 1`);
-    var chromeCanaryExecPath = `${chromeCanaryPath}/Contents/MacOS/Google Chrome Canary`;
-    launchChrome(chromeCanaryExecPath, chromeArgs);
+    var chromeExecPath;
+    if (utils.isFile(process.env.CHROMIUM_PATH)) {
+        chromeExecPath = process.env.CHROMIUM_PATH;
+    } else {
+      var lsregister = "/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister";
+      var chromeCanaryPath = shellOutput(`${lsregister} -dump | grep -i 'applications/google chrome canary.app$' | awk '{$1=""; print $0}' | head -n 1`);
+      chromeExecPath = `${chromeCanaryPath}/Contents/MacOS/Google Chrome Canary`;
+    }
+    launchChrome(chromeExecPath, chromeArgs);
 }
 
 function launchChromeLinux()
 {
     var chromiumPath;
     if (utils.isFile(process.env.CHROMIUM_PATH))
         chromiumPath = process.env.CHROMIUM_PATH;
     else if (utils.isFile(CHROMIUM_DEFAULT_PATH)) {
         chromiumPath = CHROMIUM_DEFAULT_PATH;
     } else {
@@ skipping 42 matching lines @@
 {
     var string = buffer.toString();
     console.log(string);
     return string;
 }
 
 function shellOutput(command)
 {
     return shell(command).toString().trim();
 }