DevTools: [console] Logged promise rejections do not change state once handled

Source/core/inspector/ConsoleMessage.cpp

Index: Source/core/inspector/ConsoleMessage.cpp
diff --git a/Source/core/inspector/ConsoleMessage.cpp b/Source/core/inspector/ConsoleMessage.cpp
index f2800f4dfa09685441db2b3b00876934b1dc6b70..0bbbc3dce4aaa5ffef4884b0c7f33a8f36130d44 100644
--- a/Source/core/inspector/ConsoleMessage.cpp
+++ b/Source/core/inspector/ConsoleMessage.cpp
@@ -13,6 +13,17 @@
 
 namespace blink {
 
+unsigned nextMessageId()
+{
+    struct MessageId {
+        MessageId() : value(0) { }
+        unsigned value;
+    };
+
+    AtomicallyInitializedStaticReference(WTF::ThreadSpecific<MessageId>, messageId, new WTF::ThreadSpecific<MessageId>);
+    return ++messageId->value;
+}
+
 ConsoleMessage::ConsoleMessage(MessageSource source,
     MessageLevel level,
     const String& message,
@@ -30,6 +41,8 @@ ConsoleMessage::ConsoleMessage(MessageSource source,
     , m_requestIdentifier(0)
     , m_timestamp(WTF::currentTime())
     , m_workerProxy(nullptr)
+    , m_messageId(0)
+    , m_relatedMessageId(0)
 {
 }
 
@@ -135,6 +148,13 @@ void ConsoleMessage::setTimestamp(double timestamp)
     m_timestamp = timestamp;
 }
 
+unsigned ConsoleMessage::assignMessageId()
+{
+    if (!m_messageId)
+        m_messageId = nextMessageId();
+    return m_messageId;
+}
+
 MessageSource ConsoleMessage::source() const
 {
     return m_source;