From 1bf1084f2b10c3b47fd1a588d85d21ed0eb41d0c Mon Sep 17 00:00:00 2001
From: Lorry Tar Creator <lorry-tar-importer@lorry>
Date: Tue, 27 Jun 2017 06:07:23 +0000
Subject: webkitgtk-2.16.5

---
 Source/WebCore/dom/MessagePortChannel.h | 34 +++++++++++++++++++--------------
 1 file changed, 20 insertions(+), 14 deletions(-)

(limited to 'Source/WebCore/dom/MessagePortChannel.h')

diff --git a/Source/WebCore/dom/MessagePortChannel.h b/Source/WebCore/dom/MessagePortChannel.h
index 9e1b7cba6..60ed6f836 100644
--- a/Source/WebCore/dom/MessagePortChannel.h
+++ b/Source/WebCore/dom/MessagePortChannel.h
@@ -28,15 +28,12 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef MessagePortChannel_h
-#define MessagePortChannel_h
+#pragma once
 
 #include "SerializedScriptValue.h"
-#include <wtf/OwnPtr.h>
+#include <memory>
+#include <wtf/Deque.h>
 #include <wtf/Forward.h>
-#include <wtf/PassOwnPtr.h>
-#include <wtf/PassRefPtr.h>
-#include <wtf/RefCounted.h>
 #include <wtf/RefPtr.h>
 #include <wtf/text/WTFString.h>
 
@@ -46,17 +43,27 @@ namespace WebCore {
     class MessagePortChannel;
     class PlatformMessagePortChannel;
     class ScriptExecutionContext;
-    class SerializedScriptValue;
 
     // The overwhelmingly common case is sending a single port, so handle that efficiently with an inline buffer of size 1.
-    typedef Vector<OwnPtr<MessagePortChannel>, 1> MessagePortChannelArray;
+    typedef Vector<std::unique_ptr<MessagePortChannel>, 1> MessagePortChannelArray;
 
     // MessagePortChannel is a platform-independent interface to the remote side of a message channel.
     // It acts as a wrapper around the platform-dependent PlatformMessagePortChannel implementation which ensures that the platform-dependent close() method is invoked before destruction.
     class MessagePortChannel {
         WTF_MAKE_NONCOPYABLE(MessagePortChannel); WTF_MAKE_FAST_ALLOCATED;
     public:
-        static void createChannel(PassRefPtr<MessagePort>, PassRefPtr<MessagePort>);
+        struct EventData {
+            EventData(Ref<SerializedScriptValue>&& message, std::unique_ptr<MessagePortChannelArray>&& channels)
+                : message(WTFMove(message))
+                , channels(WTFMove(channels))
+            { }
+
+            Ref<SerializedScriptValue> message;
+            std::unique_ptr<MessagePortChannelArray> channels;
+        };
+
+        explicit MessagePortChannel(RefPtr<PlatformMessagePortChannel>&&);
+        static void createChannel(MessagePort*, MessagePort*);
 
         // Entangles the channel with a port (called when a port has been cloned, after the clone has been marshaled to its new owning thread and is ready to receive messages).
         // Returns false if the entanglement failed because the port was closed.
@@ -75,10 +82,12 @@ namespace WebCore {
         bool hasPendingActivity();
 
         // Sends a message and optional cloned port to the remote port.
-        void postMessageToRemote(PassRefPtr<SerializedScriptValue>, PassOwnPtr<MessagePortChannelArray>);
+        void postMessageToRemote(Ref<SerializedScriptValue>&&, std::unique_ptr<MessagePortChannelArray>);
 
         // Extracts a message from the message queue for this port.
-        bool tryGetMessageFromRemote(RefPtr<SerializedScriptValue>&, OwnPtr<MessagePortChannelArray>&);
+        std::unique_ptr<EventData> takeMessageFromRemote();
+
+        Deque<std::unique_ptr<EventData>> takeAllMessagesFromRemote();
 
         // Returns the entangled port if run by the same thread (see MessagePort::locallyEntangledPort() for more details).
         MessagePort* locallyEntangledPort(const ScriptExecutionContext*);
@@ -86,10 +95,7 @@ namespace WebCore {
         ~MessagePortChannel();
 
     private:
-        explicit MessagePortChannel(PassRefPtr<PlatformMessagePortChannel>);
         RefPtr<PlatformMessagePortChannel> m_channel;
     };
 
 } // namespace WebCore
-
-#endif // MessagePortChannel_h
-- 
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