DevTools: simplify the async instrumentation harness.

third_party/WebKit/Source/platform/v8_inspector/V8AsyncCallTracker.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef V8AsyncCallTracker_h
-#define V8AsyncCallTracker_h
-
-#include "platform/inspector_protocol/Allocator.h"
-#include "platform/inspector_protocol/Collections.h"
-#include "platform/v8_inspector/V8DebuggerAgentImpl.h"
-
-#include <v8.h>
-
-namespace blink {
-
-class V8AsyncCallTracker final {
-    PROTOCOL_DISALLOW_COPY(V8AsyncCallTracker);
-public:
-    static PassOwnPtr<V8AsyncCallTracker> create(V8DebuggerAgentImpl* debuggerAgent)
-    {
-        return adoptPtr(new V8AsyncCallTracker(debuggerAgent));
-    }
-
-    ~V8AsyncCallTracker();
-
-    void asyncCallTrackingStateChanged(bool tracking);
-    void resetAsyncOperations();
-
-    void didReceiveV8AsyncTaskEvent(v8::Local<v8::Context>, const String16& eventType, const String16& eventName, int id);
-
-    void contextDisposed(int contextId);
-
-private:
-    struct Operations {
-        protocol::HashMap<String16, int> map;
-        int contextId;
-        V8AsyncCallTracker* target;
-        v8::Global<v8::Context> context;
-    };
-
-    static void weakCallback(const v8::WeakCallbackInfo<Operations>& data);
-
-    explicit V8AsyncCallTracker(V8DebuggerAgentImpl*);
-
-    void didEnqueueV8AsyncTask(v8::Local<v8::Context>, const String16& eventName, int id);
-    void willHandleV8AsyncTask(v8::Local<v8::Context>, const String16& eventName, int id);
-    void completeOperations(const protocol::HashMap<String16, int>& contextCallChains);
-
-    V8DebuggerAgentImpl* m_debuggerAgent;
-    protocol::HashMap<int, OwnPtr<Operations>> m_idToOperations;
-};
-
-} // namespace blink
-
-#endif // V8AsyncCallTracker_h