Wrappers for inline style declarations disappeared on GC. Fix the...

webkit/port/bindings/v8/v8_proxy.cpp

 // Copyright (c) 2008, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
@@ skipping 438 matching lines @@
     // We only care about a group if it has more than one object.  If it only
     // has one object, it has nothing else that needs to be kept alive.
     if (next_key_index - i <= 1) {
       i = next_key_index;
       continue;
     }
 
     Vector<v8::Persistent<v8::Value> > group;
     group.reserveCapacity(next_key_index - i);
     for (; i < next_key_index; ++i) {
+      Node* node = grouper[i].second;
       v8::Persistent<v8::Value> wrapper =
-          getDOMNodeMap().get(grouper[i].second);
+          getDOMNodeMap().get(node);
       if (!wrapper.IsEmpty())
         group.append(wrapper);
+      // If the node is styled and there is a wrapper for the inline
+      // style declaration, we need to keep that style declaration
+      // wrapper alive as well, so we add it to the object group.
+      if (node->isStyledElement()) {
+        StyledElement* element = reinterpret_cast<StyledElement*>(node);
+        CSSStyleDeclaration* style = element->inlineStyleDecl();
+        if (style != NULL) {
+          wrapper = getDOMObjectMap().get(style);
+          if (!wrapper.IsEmpty())
+            group.append(wrapper);
+        }
+      }
     }
 
     if (group.size() > 1)
       v8::V8::AddObjectGroup(&group[0], group.size());
 
     ASSERT(i == next_key_index);
   }
 }
 
 
@@ skipping 2820 matching lines @@
 }
 
 void V8Proxy::RegisterExtension(v8::Extension* extension,
                                 const String& schemeRestriction) {
     v8::RegisterExtension(extension);
     V8ExtensionInfo info = {schemeRestriction, extension};
     m_extensions.push_back(info);
 }
 
 }  // namespace WebCore