Revert of DevTools: extract V8DebuggerAgent interface, move it under .../inspector/v8

third_party/WebKit/Source/web/WebDevToolsAgentImpl.cpp

Index: third_party/WebKit/Source/web/WebDevToolsAgentImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebDevToolsAgentImpl.cpp b/third_party/WebKit/Source/web/WebDevToolsAgentImpl.cpp
index 73e52f5082623e5583e27be9cf96d5fc7d3b02ac..49662c054ad77d21393257b012c4747adb259a9e 100644
--- a/third_party/WebKit/Source/web/WebDevToolsAgentImpl.cpp
+++ b/third_party/WebKit/Source/web/WebDevToolsAgentImpl.cpp
@@ -38,6 +38,7 @@
 #include "core/frame/FrameConsole.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
+#include "core/inspector/AsyncCallTracker.h"
 #include "core/inspector/IdentifiersFactory.h"
 #include "core/inspector/InjectedScriptHost.h"
 #include "core/inspector/InjectedScriptManager.h"
@@ -409,6 +410,7 @@
     visitor->trace(m_resourceContentLoader);
     visitor->trace(m_state);
     visitor->trace(m_overlay);
+    visitor->trace(m_asyncCallTracker);
     visitor->trace(m_inspectorAgent);
     visitor->trace(m_domAgent);
     visitor->trace(m_pageAgent);
@@ -462,6 +464,7 @@
     OwnPtrWillBeRawPtr<InspectorDebuggerAgent> debuggerAgentPtr(PageDebuggerAgent::create(MainThreadDebugger::instance(), m_pageAgent, injectedScriptManager));
     InspectorDebuggerAgent* debuggerAgent = debuggerAgentPtr.get();
     m_agents.append(debuggerAgentPtr.release());
+    m_asyncCallTracker = adoptPtrWillBeNoop(new AsyncCallTracker(debuggerAgent->v8DebuggerAgent(), m_instrumentingAgents.get()));
 
     m_agents.append(InspectorDOMDebuggerAgent::create(injectedScriptManager, m_domAgent, debuggerAgent->v8DebuggerAgent()));