DevTools: Implement the console prompt with CodeMirror

third_party/WebKit/Source/devtools/front_end/main/module.json

 {
     "extensions": [
         {
             "type": "@WebInspector.AppProvider",
             "className": "WebInspector.SimpleAppProvider",
             "order": 10
         },
         {
             "type": "@WebInspector.ContextMenu.Provider",
             "contextTypes": ["WebInspector.UISourceCode", "WebInspector.Resource", "WebInspector.NetworkRequest", "Node"],
@@ skipping 287 matching lines @@
         },
         {
             "type": "setting",
             "category": "Console",
             "title": "Report input events blocked for too long",
             "settingName": "blockedEventsWarningEnabled",
             "settingType": "boolean",
             "defaultValue": true
         },
         {
+            "type": "setting",
+            "category": "Console",
+            "title": "Bracket matching",
+            "settingName": "consoleBracketMatching",

[pfeldman, 2016/09/14 00:31:53]

I'd reuse the setting from sources.

[einbinder, 2016/09/14 20:21:06]

Bracket matching ins't really the right name for this option, although its what
we call it. It makes it so that brackets are automatically added in. This hurts
the autocomplete in the console, because we don't show grey hint text if you
aren't at the end of a line. With the next patch, we try to enter a newline if
your statement isn't complete. But if we add in the brackets for you, your
statement will always be complete.

+            "settingType": "boolean",
+            "defaultValue": false
+        },
+        {
             "type": "@WebInspector.SettingUI",
             "category": "Extensions",
             "className": "WebInspector.HandlerRegistry.OpenAnchorLocationSettingUI"
         },
         {
             "type": "@WebInspector.SettingUI",
             "category": "Elements",
             "order": 3,
             "className": "WebInspector.ShowMetricsRulersSettingUI"
         },
@@ skipping 44 matching lines @@
         "Connections.js",
         "Main.js"
     ],
     "resources": [
         "errorWarningCounter.css",
         "remoteDebuggingTerminatedScreen.css",
         "renderingOptions.css",
         "targetCrashedScreen.css"
     ]
 }