DevTools: Add scripts sourceURL plumbing from v8.

Source/core/inspector/ScriptDebugListener.h

Index: Source/core/inspector/ScriptDebugListener.h
diff --git a/Source/core/inspector/ScriptDebugListener.h b/Source/core/inspector/ScriptDebugListener.h
index 24a9689c799c5e1ddd6e1ca6cfdfd91d05b70d3d..f10a42a20b32af3a0d8d886d00b6eb0bcbce70e2 100644
--- a/Source/core/inspector/ScriptDebugListener.h
+++ b/Source/core/inspector/ScriptDebugListener.h
@@ -57,8 +57,9 @@ public:
         }
 
         String url;
-        String source;
+        String sourceURL;
         String sourceMappingURL;
+        String source;
         int startLine;
         int startColumn;
         int endLine;
@@ -75,7 +76,7 @@ public:
 
     virtual ~ScriptDebugListener() { }
 
-    virtual void didParseSource(const String& scriptId, const Script&, CompileResult) = 0;
+    virtual void didParseSource(const String& scriptId, Script&, CompileResult) = 0;
     virtual SkipPauseRequest didPause(ScriptState*, const ScriptValue& callFrames, const ScriptValue& exception, const Vector<String>& hitBreakpoints) = 0;
     virtual void didContinue() = 0;
     virtual void didReceiveV8AsyncTaskEvent(ExecutionContext*, const String& eventType, const String& eventName, int id) = 0;