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third_party/WebKit/Source/core/style/ComputedStyle.cpp

Index: third_party/WebKit/Source/core/style/ComputedStyle.cpp
diff --git a/third_party/WebKit/Source/core/style/ComputedStyle.cpp b/third_party/WebKit/Source/core/style/ComputedStyle.cpp
index 89a762a575958b1e46e6cc459ae1baed7f3f3a6e..18dbc6ae417865f81223ec0697862d17c37aeb70 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.cpp
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.cpp
@@ -83,6 +83,18 @@ PassRefPtr<ComputedStyle> ComputedStyle::createInitialStyle()
     return adoptRef(new ComputedStyle(InitialStyle));
 }
 
+void ComputedStyle::clearInitialStyle()
+{
+    ComputedStyle** pointer = initialStylePointer();
+    if (!*pointer)
+        return;
+    RefPtr<ComputedStyle> holder = adoptRef(*pointer);
+    {
+        LEAK_SANITIZER_DISABLED_SCOPE;
+        *pointer = createInitialStyle().leakRef();
+    }
+}
+
 PassRefPtr<ComputedStyle> ComputedStyle::createAnonymousStyleWithDisplay(const ComputedStyle& parentStyle, EDisplay display)
 {
     RefPtr<ComputedStyle> newStyle = ComputedStyle::create();