binding: Changes the association among global-proxy/global/window-instance.

third_party/WebKit/Source/bindings/core/v8/DOMWrapperWorld.cpp

Index: third_party/WebKit/Source/bindings/core/v8/DOMWrapperWorld.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/DOMWrapperWorld.cpp b/third_party/WebKit/Source/bindings/core/v8/DOMWrapperWorld.cpp
index 9e6672465511eb4ba8ab3d079ed680d821684127..d07bfd9d5c0aa63aecbedae4810e632fcc8be6d0 100644
--- a/third_party/WebKit/Source/bindings/core/v8/DOMWrapperWorld.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/DOMWrapperWorld.cpp
@@ -319,4 +319,16 @@ void DOMWrapperWorld::weakCallbackForDOMObjectHolder(
   holderBase->world()->unregisterDOMObjectHolder(holderBase);
 }
 
+void DOMWrapperWorld::dissociateWrappersInAllWorlds(

[haraken, 2017/02/09 12:46:40]

dissociateWrappersInAllWorlds => disconnectDOMWindowWrapper

+    ScriptWrappable* scriptWrappable) {
+  DCHECK(scriptWrappable);
+  DCHECK(isMainThread());
+
+  scriptWrappable->unsetWrapperIfAny();
+
+  for (auto& world : isolatedWorldMap().values()) {
+    world->domDataStore().unsetWrapperIfAny(scriptWrappable);
+  }
+}
+
 }  // namespace blink