DevTools: copy protocol files to front-end to fix hosted mode

third_party/WebKit/Source/devtools/front_end/Runtime.js

Index: third_party/WebKit/Source/devtools/front_end/Runtime.js
diff --git a/third_party/WebKit/Source/devtools/front_end/Runtime.js b/third_party/WebKit/Source/devtools/front_end/Runtime.js
index 2f0b1ee9713e90beb692924aa62af7a8b27d0b35..adb09f22c15f2f6846c54120fbedc8997b589339 100644
--- a/third_party/WebKit/Source/devtools/front_end/Runtime.js
+++ b/third_party/WebKit/Source/devtools/front_end/Runtime.js
@@ -116,6 +116,7 @@ function loadScriptsPromise(scriptNames, base)
     var promises = [];
     /** @type {!Array<string>} */
     var urls = [];
+    var pauseSourceEvaluation = false;
     var sources = new Array(scriptNames.length);
     var scriptToEval = 0;
     for (var i = 0; i < scriptNames.length; ++i) {
@@ -131,27 +132,30 @@ function loadScriptsPromise(scriptNames, base)
         if (_loadedScripts[sourceURL])
             continue;
         urls.push(sourceURL);
-        promises.push(loadResourcePromise(sourceURL).then(scriptSourceLoaded.bind(null, i), scriptSourceLoaded.bind(null, i, undefined)));
+        var promise = loadResourcePromise(sourceURL)
+            .then(scriptSource => scriptSource || "")
+            .catch(e => "");
+        promises.push(promise);
     }
-    return Promise.all(promises).then(undefined);
+    var allSourcesPromise = /** @type {!Promise<!Array<string>>} */(Promise.all(promises));
+    return allSourcesPromise.then(evaluateSources);
 
     /**
-     * @param {number} scriptNumber
-     * @param {string=} scriptSource
+     * @param {!Array<string>} sources
+     * @return {!Promise}
      */
-    function scriptSourceLoaded(scriptNumber, scriptSource)
+    function evaluateSources(sources)
     {
-        sources[scriptNumber] = scriptSource || "";
-        // Eval scripts as fast as possible.
-        while (typeof sources[scriptToEval] !== "undefined") {
-            evaluateScript(urls[scriptToEval], sources[scriptToEval]);
-            ++scriptToEval;
-        }
+        var result = Promise.resolve();
+        for (var i = 0; i < sources.length; ++i)
+            result = result.then(evaluateScript.bind(null, urls[i], sources[i]));
+        return result;
     }
 
     /**
      * @param {string} sourceURL
      * @param {string=} scriptSource
+     * @return {?Promise}
      */
     function evaluateScript(sourceURL, scriptSource)
     {
@@ -159,9 +163,10 @@ function loadScriptsPromise(scriptNames, base)
         if (!scriptSource) {
             // Do not reject, as this is normal in the hosted mode.
             console.error("Empty response arrived for script '" + sourceURL + "'");
-            return;
+            return null;
         }
-        self.eval(scriptSource + "\n//# sourceURL=" + sourceURL);
+        var result = self.eval(scriptSource + "\n//# sourceURL=" + sourceURL);
+        return result instanceof Promise ? result : null;
     }
 }