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Unified Diff: third_party/WebKit/Source/core/testing/Internals.cpp

Issue 1489433002: Support the essential part of Shadow DOM v1 (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Use the 3-line header Created 5 years ago
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Index: third_party/WebKit/Source/core/testing/Internals.cpp
diff --git a/third_party/WebKit/Source/core/testing/Internals.cpp b/third_party/WebKit/Source/core/testing/Internals.cpp
index 511576e7591a42685a865b6e64b8f26a6a357f05..ee3bb5df7919c59a74e9d022dc88b2e15b672a54 100644
--- a/third_party/WebKit/Source/core/testing/Internals.cpp
+++ b/third_party/WebKit/Source/core/testing/Internals.cpp
@@ -619,6 +619,16 @@ Node* Internals::previousInComposedTree(Node* node, ExceptionState& exceptionSta
return ComposedTreeTraversal::previous(*node);
}
+Node* Internals::parentInComposedTree(Node* node, ExceptionState& exceptionState)
+{
+ ASSERT(node);
+ if (!node->canParticipateInComposedTree()) {
+ exceptionState.throwDOMException(InvalidAccessError, "The node argument doesn't particite in the composed tree.");
+ return nullptr;
+ }
+ return ComposedTreeTraversal::parent(*node);
+}
+
String Internals::elementLayoutTreeAsText(Element* element, ExceptionState& exceptionState)
{
ASSERT(element);

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