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

third_party/WebKit/Source/devtools/front_end/sdk/InspectorBackendHostedMode.js

Index: third_party/WebKit/Source/devtools/front_end/sdk/InspectorBackendHostedMode.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sdk/InspectorBackendHostedMode.js b/third_party/WebKit/Source/devtools/front_end/sdk/InspectorBackendHostedMode.js
index 7c98b7348ba7951ccde235f110d096e6512057b9..3e777adf765c9a09004f7bebc3d3f27f06c28263 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/InspectorBackendHostedMode.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/InspectorBackendHostedMode.js
@@ -7,20 +7,28 @@
 WebInspector.InspectorBackendHostedMode = {};
 
 /**
- * @param {string} jsonUrl
+ * @param {!Array<string>} urls
+ * @return {?Promise}
  */
-WebInspector.InspectorBackendHostedMode.loadFromJSONIfNeeded = function(jsonUrl)
+WebInspector.InspectorBackendHostedMode.loadFromJSONIfNeeded = function(urls)
 {
     if (InspectorBackend.isInitialized())
-        return;
+        return null;
 
-    var xhr = new XMLHttpRequest();
-    xhr.open("GET", jsonUrl, false);
-    xhr.send(null);
+    var promises = urls.map(url => loadURL(url));
+    return Promise.all(promises);
 
-    var schema = JSON.parse(xhr.responseText);
-    var code = WebInspector.InspectorBackendHostedMode.generateCommands(schema);
-    eval(code);
+    /**
+     * @param {string} url
+     * @return {!Promise}
+     */
+    function loadURL(url)
+    {
+        return fetch(url)
+            .then(response => response.text())

[pfeldman, 2016/07/07 23:25:44]

I consider this an anti-pattern. Sync code should be executed synchronously,
there is no point in introducing overhead of instantiated promises and
microtasks.

+            .then(schema => WebInspector.InspectorBackendHostedMode.generateCommands(JSON.parse(schema)))
+            .then(code => eval(code));
+    }
 }
 
 /**
@@ -122,4 +130,7 @@ WebInspector.InspectorBackendHostedMode.generateCommands = function(schema)
     return result.join("\n");
 }
 
-WebInspector.InspectorBackendHostedMode.loadFromJSONIfNeeded("../inspector.json");
+WebInspector.InspectorBackendHostedMode.loadFromJSONIfNeeded([
+    "../sdk/protocol/browser_protocol.json",
+    "../sdk/protocol/js_protocol.json"
+]);