| Index: third_party/WebKit/Source/core/dom/shadow/ShadowRoot.h
 | 
| diff --git a/third_party/WebKit/Source/core/dom/shadow/ShadowRoot.h b/third_party/WebKit/Source/core/dom/shadow/ShadowRoot.h
 | 
| index 2f923bfe4b82b45c2838ca088ebee9a28fac0e39..4d1165fa251a828c543238c4202f0d4ffd24ac7d 100644
 | 
| --- a/third_party/WebKit/Source/core/dom/shadow/ShadowRoot.h
 | 
| +++ b/third_party/WebKit/Source/core/dom/shadow/ShadowRoot.h
 | 
| @@ -34,6 +34,7 @@
 | 
|  #include "core/dom/TreeScope.h"
 | 
|  #include "core/dom/shadow/SlotAssignment.h"
 | 
|  #include "wtf/DoublyLinkedList.h"
 | 
| +#include <iosfwd>
 | 
|  
 | 
|  namespace blink {
 | 
|  
 | 
| @@ -200,6 +201,8 @@ DEFINE_NODE_TYPE_CASTS(ShadowRoot, isShadowRoot());
 | 
|  DEFINE_TYPE_CASTS(ShadowRoot, TreeScope, treeScope, treeScope->rootNode().isShadowRoot(), treeScope.rootNode().isShadowRoot());
 | 
|  DEFINE_TYPE_CASTS(TreeScope, ShadowRoot, shadowRoot, true, true);
 | 
|  
 | 
| +std::ostream& operator<<(std::ostream&, const ShadowRootType&);
 | 
| +
 | 
|  } // namespace blink
 | 
|  
 | 
|  #endif // ShadowRoot_h
 | 
| 
 |