DevTools: remove setScriptFile from UISourceCode.

Source/devtools/front_end/ScriptSnippetModel.js

Index: Source/devtools/front_end/ScriptSnippetModel.js
diff --git a/Source/devtools/front_end/ScriptSnippetModel.js b/Source/devtools/front_end/ScriptSnippetModel.js
index deabc34a026066f36fc7f0970360e9617a54039f..4b0aba18babc0844fa074d88fe29f515170b46ec 100644
--- a/Source/devtools/front_end/ScriptSnippetModel.js
+++ b/Source/devtools/front_end/ScriptSnippetModel.js
@@ -44,7 +44,9 @@ WebInspector.ScriptSnippetModel = function(workspace)
     this._uiSourceCodeForSnippetId = {};
     /** @type {!Map.<!WebInspector.UISourceCode, string>} */
     this._snippetIdForUISourceCode = new Map();
-    
+    /** @type {!Map.<!WebInspector.UISourceCode, !WebInspector.SnippetScriptFile>} */
+    this._scriptFiles = new Map();
+
     this._snippetStorage = new WebInspector.SnippetStorage("script", "Script snippet #");
     this._lastSnippetEvaluationIndexSetting = WebInspector.settings.createSetting("lastSnippetEvaluationIndex", 0);
     this._snippetScriptMapping = new WebInspector.SnippetScriptMapping(this);
@@ -101,8 +103,7 @@ WebInspector.ScriptSnippetModel.prototype = {
             console.assert(uiSourceCode);
             return "";
         }
-        var scriptFile = new WebInspector.SnippetScriptFile(this, uiSourceCode);
-        uiSourceCode.setScriptFile(scriptFile);
+        this._scriptFiles.put(uiSourceCode, new WebInspector.SnippetScriptFile(this, uiSourceCode));
         this._snippetIdForUISourceCode.put(uiSourceCode, snippet.id);
         uiSourceCode.setSourceMapping(this._snippetScriptMapping);
         this._uiSourceCodeForSnippetId[snippet.id] = uiSourceCode;
@@ -328,7 +329,8 @@ WebInspector.ScriptSnippetModel.prototype = {
         console.assert(!this._scriptForUISourceCode.get(uiSourceCode));
         this._uiSourceCodeForScriptId[script.scriptId] = uiSourceCode;
         this._scriptForUISourceCode.put(uiSourceCode, script);
-        uiSourceCode.scriptFile().setHasDivergedFromVM(false);
+        var scriptFile = /** @type {?WebInspector.SnippetScriptFile} */ (this._scriptFiles.get(uiSourceCode));
+        scriptFile.setHasDivergedFromVM(false);
         script.pushSourceMapping(this._snippetScriptMapping);
     },
 
@@ -365,13 +367,13 @@ WebInspector.ScriptSnippetModel.prototype = {
         var script = this._scriptForUISourceCode.get(uiSourceCode);
         if (!script)
             return null;
-
-        uiSourceCode.scriptFile().setIsDivergingFromVM(true);
-        uiSourceCode.scriptFile().setHasDivergedFromVM(true);
+        var scriptFile = /** @type {?WebInspector.SnippetScriptFile} */ (this._scriptFiles.get(uiSourceCode));

[vsevik, 2014/04/09 10:39:42]

No need to cast, since you don't store anything else in this map.

+        scriptFile.setIsDivergingFromVM(true);
+        scriptFile.setHasDivergedFromVM(true);
         delete this._uiSourceCodeForScriptId[script.scriptId];
         this._scriptForUISourceCode.remove(uiSourceCode);
         delete uiSourceCode._evaluationIndex;
-        uiSourceCode.scriptFile().setIsDivergingFromVM(false);
+        scriptFile.setIsDivergingFromVM(false);
     },
 
     _debuggerReset: function()
@@ -493,11 +495,13 @@ WebInspector.SnippetScriptFile.prototype = {
 
 /**
  * @constructor
- * @implements {WebInspector.ScriptSourceMapping}
+ * @extends {WebInspector.SourceMappingWithScriptFile}
+ * @implements {WebInspector.SourceMapping}
  * @param {!WebInspector.ScriptSnippetModel} scriptSnippetModel
  */
 WebInspector.SnippetScriptMapping = function(scriptSnippetModel)
 {
+    WebInspector.SourceMappingWithScriptFile.call(this);
     this._scriptSnippetModel = scriptSnippetModel;
 }
 
@@ -547,6 +551,17 @@ WebInspector.SnippetScriptMapping.prototype = {
     {
         return false;
     },
+
+    /**
+     * @param {!WebInspector.UISourceCode} uiSourceCode
+     * @return {?WebInspector.SnippetScriptFile}
+     */
+    scriptFile: function(uiSourceCode)
+    {
+        return this._scriptSnippetModel._scriptFiles.get(uiSourceCode) || null;
+    },
+
+    __proto__: WebInspector.SourceMappingWithScriptFile.prototype
 }
 
 /**