Allow sites to enable 'window.onerror' handlers for cross-domain scripts.

Source/core/dom/ScriptLoader.cpp

Index: Source/core/dom/ScriptLoader.cpp
diff --git a/Source/core/dom/ScriptLoader.cpp b/Source/core/dom/ScriptLoader.cpp
index e9189835e5afef00793d27bb6ea105529484d582..4cf45bb77a6198f86a7aba742445d9c9b8f38612 100644
--- a/Source/core/dom/ScriptLoader.cpp
+++ b/Source/core/dom/ScriptLoader.cpp
@@ -335,10 +335,14 @@ void ScriptLoader::executeScript(const ScriptSourceCode& sourceCode)
         if (isHTMLScriptLoader(m_element))
             executingDocument->pushCurrentScript(toHTMLScriptElement(m_element));
 
+        AccessControlStatus corsCheck = NotSharableCrossOrigin;
+        if (sourceCode.cachedScript() && sourceCode.cachedScript()->passesAccessControlCheck(m_element->document()->securityOrigin()))
+            corsCheck = SharableCrossOrigin;
+
         // Create a script from the script element node, using the script
         // block's source and the script block's type.
         // Note: This is where the script is compiled and actually executed.
-        frame->script()->executeScriptInMainWorld(sourceCode);
+        frame->script()->executeScriptInMainWorld(sourceCode, corsCheck);
 
         if (isHTMLScriptLoader(m_element)) {
             ASSERT(executingDocument->currentScript() == m_element);