Revert ExtendableMessageEvent same heap verification.

third_party/WebKit/Source/modules/serviceworkers/ExtendableMessageEvent.cpp

Index: third_party/WebKit/Source/modules/serviceworkers/ExtendableMessageEvent.cpp
diff --git a/third_party/WebKit/Source/modules/serviceworkers/ExtendableMessageEvent.cpp b/third_party/WebKit/Source/modules/serviceworkers/ExtendableMessageEvent.cpp
index 398555cc99f7e78eac7dbb3ab92a53d22b63f5c6..fadbc471e203e25bc645516cea96134289f9200d 100644
--- a/third_party/WebKit/Source/modules/serviceworkers/ExtendableMessageEvent.cpp
+++ b/third_party/WebKit/Source/modules/serviceworkers/ExtendableMessageEvent.cpp
@@ -117,17 +117,8 @@ ExtendableMessageEvent::ExtendableMessageEvent(
     else if (initializer.source().isMessagePort())
       m_sourceAsMessagePort = initializer.source().getAsMessagePort();
   }
-  if (initializer.hasPorts()) {
-    // TODO(sof): remove the extra same-heap checks once crbug.com/655926
-    // has been resolved.
-    const MessagePortArray& ports = initializer.ports();
-    m_ports = new MessagePortArray;
-    m_ports->reserveInitialCapacity(ports.size());
-    for (const auto& port : ports) {
-      CHECK(ThreadState::current()->isOnThreadHeap(port.get()));
-      m_ports->push_back(port);
-    }
-  }
+  if (initializer.hasPorts())
+    m_ports = new MessagePortArray(initializer.ports());
 }
 
 ExtendableMessageEvent::ExtendableMessageEvent(
@@ -144,14 +135,6 @@ ExtendableMessageEvent::ExtendableMessageEvent(
       m_ports(ports) {
   if (m_serializedData)
     m_serializedData->registerMemoryAllocatedWithCurrentScriptContext();
-
-  // TODO(sof): remove the same-heap verification once crbug.com/655926 has
-  // been resolved.
-  if (m_ports) {
-    for (const auto& port : *m_ports) {
-      CHECK(ThreadState::current()->isOnThreadHeap(port.get()));
-    }
-  }
 }
 
 }  // namespace blink