DevTools: notify backend agents about profiler started/stopped events

Source/core/inspector/InspectorBaseAgent.cpp

Index: Source/core/inspector/InspectorBaseAgent.cpp
diff --git a/Source/core/inspector/InspectorBaseAgent.cpp b/Source/core/inspector/InspectorBaseAgent.cpp
index e1b4e8abba2be36bf385cb664eba49da646358b2..b90610196fa4a623d3bc9b6d8b864a314c3e150a 100644
--- a/Source/core/inspector/InspectorBaseAgent.cpp
+++ b/Source/core/inspector/InspectorBaseAgent.cpp
@@ -58,6 +58,18 @@ InspectorAgentRegistry::InspectorAgentRegistry(InstrumentingAgents* instrumentin
 {
 }
 
+void InspectorAgentRegistry::profilerStarted()
+{
+    for (size_t i = 0; i < m_agents.size(); i++)
+        m_agents[i]->profilerStarted();
+}
+
+void InspectorAgentRegistry::profilerStopped()
+{
+    for (size_t i = 0; i < m_agents.size(); i++)
+        m_agents[i]->profilerStopped();
+}
+
 void InspectorAgentRegistry::append(PassOwnPtr<InspectorAgent> agent)
 {
     agent->appended(m_instrumentingAgents, m_inspectorState->createAgentState(agent->name()));