DevTools: Turn *Model events into symbols

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

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 54 matching lines @@
  * Keep these in sync with WebCore::V8Debugger
  *
  * @enum {string}
  */
 WebInspector.DebuggerModel.PauseOnExceptionsState = {
     DontPauseOnExceptions : "none",
     PauseOnAllExceptions : "all",
     PauseOnUncaughtExceptions: "uncaught"
 };
 
-/** @enum {string} */
+/** @enum {symbol} */
 WebInspector.DebuggerModel.Events = {
-    DebuggerWasEnabled: "DebuggerWasEnabled",
-    DebuggerWasDisabled: "DebuggerWasDisabled",
-    BeforeDebuggerPaused: "BeforeDebuggerPaused",
-    DebuggerPaused: "DebuggerPaused",
-    DebuggerResumed: "DebuggerResumed",
-    ParsedScriptSource: "ParsedScriptSource",
-    FailedToParseScriptSource: "FailedToParseScriptSource",
-    GlobalObjectCleared: "GlobalObjectCleared",
-    CallFrameSelected: "CallFrameSelected",
-    ConsoleCommandEvaluatedInSelectedCallFrame: "ConsoleCommandEvaluatedInSelectedCallFrame"
+    DebuggerWasEnabled: Symbol("DebuggerWasEnabled"),
+    DebuggerWasDisabled: Symbol("DebuggerWasDisabled"),
+    BeforeDebuggerPaused: Symbol("BeforeDebuggerPaused"),
+    DebuggerPaused: Symbol("DebuggerPaused"),
+    DebuggerResumed: Symbol("DebuggerResumed"),
+    ParsedScriptSource: Symbol("ParsedScriptSource"),
+    FailedToParseScriptSource: Symbol("FailedToParseScriptSource"),
+    GlobalObjectCleared: Symbol("GlobalObjectCleared"),
+    CallFrameSelected: Symbol("CallFrameSelected"),
+    ConsoleCommandEvaluatedInSelectedCallFrame: Symbol("ConsoleCommandEvaluatedInSelectedCallFrame")
 }
 
 /** @enum {string} */
 WebInspector.DebuggerModel.BreakReason = {
     DOM: "DOM",
     EventListener: "EventListener",
     XHR: "XHR",
     Exception: "exception",
     PromiseRejection: "promiseRejection",
     Assert: "assert",
@@ skipping 1173 matching lines @@
 /**
  * @param {?WebInspector.Target} target
  * @return {?WebInspector.DebuggerModel}
  */
 WebInspector.DebuggerModel.fromTarget = function(target)
 {
     if (!target || !target.hasJSCapability())
         return null;
     return /** @type {?WebInspector.DebuggerModel} */ (target.model(WebInspector.DebuggerModel));
 }