[DevTools] Don't load sourcemap for blackboxed scripts

third_party/WebKit/Source/devtools/front_end/bindings/CompilerScriptMapping.js

Index: third_party/WebKit/Source/devtools/front_end/bindings/CompilerScriptMapping.js
diff --git a/third_party/WebKit/Source/devtools/front_end/bindings/CompilerScriptMapping.js b/third_party/WebKit/Source/devtools/front_end/bindings/CompilerScriptMapping.js
index e116c9f7670c2fb67f363e424df174b4cc633994..32b1832310be1e6bd0f4d68625279fab0b7c0ea8 100644
--- a/third_party/WebKit/Source/devtools/front_end/bindings/CompilerScriptMapping.js
+++ b/third_party/WebKit/Source/devtools/front_end/bindings/CompilerScriptMapping.js
@@ -166,6 +166,20 @@ WebInspector.CompilerScriptMapping.prototype = {
     },
 
     /**
+     * @param {!WebInspector.Script} script
+     */
+    maybeLoadSourceMap: function(script)
+    {
+        if (!script.sourceMapURL)
+            return;
+        if (this._pendingSourceMapLoadingCallbacks[script.sourceMapURL])
+            return;
+        if (this._sourceMapForScriptId[script.scriptId])
+            return;
+        this._processScript(script);
+    },
+
+    /**
      * @param {!WebInspector.Event} event
      */
     _sourceMapURLAdded: function(event)
@@ -181,6 +195,8 @@ WebInspector.CompilerScriptMapping.prototype = {
      */
     _processScript: function(script)
     {
+        if (WebInspector.blackboxManager.isBlackboxedURL(script.sourceURL, script.isContentScript()))
+            return;
         // Create stub UISourceCode for the time source mapping is being loaded.
         var stubUISourceCode = this._stubProject.addContentProvider(script.sourceURL, new WebInspector.StaticContentProvider(WebInspector.resourceTypes.Script, "\n\n\n\n\n// Please wait a bit.\n// Compiled script is not shown while source map is being loaded!", script.sourceURL));
         this._stubUISourceCodes.set(script.scriptId, stubUISourceCode);