Merge 132462

Source/WebCore/inspector/InspectorStyleSheet.cpp

Index: Source/WebCore/inspector/InspectorStyleSheet.cpp
===================================================================
--- Source/WebCore/inspector/InspectorStyleSheet.cpp	(revision 132834)
+++ Source/WebCore/inspector/InspectorStyleSheet.cpp	(working copy)
@@ -844,16 +844,18 @@
         return false;
     }
 
-    styleSheet->deleteRule(id.ordinal(), ec);
-    if (ec)
-        return false;
-
     RefPtr<CSSRuleSourceData> sourceData = ruleSourceDataFor(rule->style());
     if (!sourceData) {
         ec = NOT_FOUND_ERR;
         return false;
     }
 
+    styleSheet->deleteRule(id.ordinal(), ec);
+    // |rule| MAY NOT be addressed after this line!
+
+    if (ec)
+        return false;
+
     String sheetText = m_parsedStyleSheet->text();
     sheetText.remove(sourceData->ruleHeaderRange.start, sourceData->ruleBodyRange.end - sourceData->ruleHeaderRange.start + 1);
     m_parsedStyleSheet->setText(sheetText);