[DevTools] Make resource tree model optional

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 1bcd93290cd053424df478b20de11c390dfc1d94..26fa6b42b4c7d8cd73dd1a67aa01a72baf94cef3 100644
--- a/third_party/WebKit/Source/devtools/front_end/bindings/CompilerScriptMapping.js
+++ b/third_party/WebKit/Source/devtools/front_end/bindings/CompilerScriptMapping.js
@@ -323,7 +323,10 @@ WebInspector.CompilerScriptMapping.prototype = {
     {
         // script.sourceURL can be a random string, but is generally an absolute path -> complete it to inspected page url for

[pfeldman, 2016/07/07 17:44:13]

This arguably belongs here, we should have resolved sourceURL elsewhere if we
needed to. We need to optionally provide debugger model with the inspected page
url that would be used to complete relative sourceURLs.

[eostroukhov-old, 2016/07/13 23:30:58]

Done.

         // relative links.
-        var scriptURL = WebInspector.ParsedURL.completeURL(this._target.resourceTreeModel.inspectedPageURL(), script.sourceURL);
+        var scriptURL = script.sourceURL;
+        var resourceTreeModel = WebInspector.ResourceTreeModel.fromTarget(this._target);
+        if (resourceTreeModel)
+            scriptURL = WebInspector.ParsedURL.completeURL(resourceTreeModel.inspectedPageURL(), scriptURL);
         if (!scriptURL)
             return Promise.resolve(/** @type {?WebInspector.TextSourceMap} */(null));