DevTools: Implement async call stacks for Promises.

Source/core/inspector/InspectorDebuggerAgent.cpp

Index: Source/core/inspector/InspectorDebuggerAgent.cpp
diff --git a/Source/core/inspector/InspectorDebuggerAgent.cpp b/Source/core/inspector/InspectorDebuggerAgent.cpp
index dfe81dd4afc9e02306e2894b7f22af48d828f4e3..00e7752d7c3f3dcda9eac797786403335d21d1cb 100644
--- a/Source/core/inspector/InspectorDebuggerAgent.cpp
+++ b/Source/core/inspector/InspectorDebuggerAgent.cpp
@@ -775,6 +775,24 @@ void InspectorDebuggerAgent::didDeliverMutationRecords()
         m_asyncCallStackTracker.didFireAsyncCall();
 }
 
+void InspectorDebuggerAgent::didPostPromiseTask(ExecutionContext* context, ExecutionContextTask* task, bool isFulfilled)
+{
+    if (m_asyncCallStackTracker.isEnabled())
+        m_asyncCallStackTracker.didPostPromiseTask(context, task, isFulfilled, scriptDebugServer().currentCallFrames());
+}
+
+void InspectorDebuggerAgent::willPerformPromiseTask(ExecutionContext* context, ExecutionContextTask* task)
+{
+    if (m_asyncCallStackTracker.isEnabled())
+        m_asyncCallStackTracker.willPerformPromiseTask(context, task);
+}
+
+void InspectorDebuggerAgent::didPerformPromiseTask()
+{
+    if (m_asyncCallStackTracker.isEnabled())
+        m_asyncCallStackTracker.didFireAsyncCall();
+}
+
 void InspectorDebuggerAgent::pause(ErrorString*)
 {
     if (m_javaScriptPauseScheduled)