DevTools: Use CodeMirror syntax highlighting to improve JS autocomplete

third_party/WebKit/Source/devtools/front_end/text_editor/TextEditorAutocompleteController.js

Index: third_party/WebKit/Source/devtools/front_end/text_editor/TextEditorAutocompleteController.js
diff --git a/third_party/WebKit/Source/devtools/front_end/text_editor/TextEditorAutocompleteController.js b/third_party/WebKit/Source/devtools/front_end/text_editor/TextEditorAutocompleteController.js
index a0516cc7f112be6588e2e4e6170857061f87361a..368d8388bac7f1b666d691a2e13fd54dd351c53a 100644
--- a/third_party/WebKit/Source/devtools/front_end/text_editor/TextEditorAutocompleteController.js
+++ b/third_party/WebKit/Source/devtools/front_end/text_editor/TextEditorAutocompleteController.js
@@ -110,11 +110,12 @@ WebInspector.TextEditorAutocompleteController = class {
    * @param {!WebInspector.TextRange} queryRange
    * @param {!WebInspector.TextRange} substituteRange
    * @param {boolean=} force
+   * @param {string=} tokenType
    * @return {!Promise.<!WebInspector.SuggestBox.Suggestions>}
    */
-  _wordsWithQuery(queryRange, substituteRange, force) {
+  _wordsWithQuery(queryRange, substituteRange, force, tokenType) {
     var external =
-        this._config.suggestionsCallback ? this._config.suggestionsCallback(queryRange, substituteRange, force) : null;
+        this._config.suggestionsCallback ? this._config.suggestionsCallback(queryRange, substituteRange, force, tokenType) : null;
     if (external)
       return external;
 
@@ -233,8 +234,9 @@ WebInspector.TextEditorAutocompleteController = class {
     var hadSuggestBox = false;
     if (this._suggestBox)
       hadSuggestBox = true;
-
-    this._wordsWithQuery(queryRange, substituteRange, force).then(wordsAcquired.bind(this));
+    var token = this._textEditor.tokenAtTextPosition(substituteRange.startLine, substituteRange.startColumn);
+    var tokenType = (token && token.type) || '';
+    this._wordsWithQuery(queryRange, substituteRange, force, tokenType).then(wordsAcquired.bind(this));
 
     /**
      * @param {!WebInspector.SuggestBox.Suggestions} wordsWithQuery