1 files changed, 105 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/core/inspector/AsyncCallStackTracker.h b/chromium/third_party/WebKit/Source/core/inspector/AsyncCallStackTracker.h
new file mode 100644
index 00000000000..e032134eeda
--- /dev/null
+++ b/chromium/third_party/WebKit/Source/core/inspector/AsyncCallStackTracker.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2013 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef AsyncCallStackTracker_h
+#define AsyncCallStackTracker_h
+
+#include "bindings/v8/ScriptValue.h"
+#include "wtf/Deque.h"
+#include "wtf/HashMap.h"
+#include "wtf/HashSet.h"
+#include "wtf/Noncopyable.h"
+#include "wtf/PassRefPtr.h"
+#include "wtf/RefPtr.h"
+
+namespace WebCore {
+
+class ExecutionContext;
+
+class AsyncCallStackTracker {
+    WTF_MAKE_NONCOPYABLE(AsyncCallStackTracker);
+public:
+    class AsyncCallStack : public RefCounted<AsyncCallStack> {
+    public:
+        AsyncCallStack(const String&, const ScriptValue&);
+        ~AsyncCallStack();
+        String description() const { return m_description; }
+        ScriptValue callFrames() const { return m_callFrames; }
+    private:
+        String m_description;
+        ScriptValue m_callFrames;
+    };
+
+    typedef Deque<RefPtr<AsyncCallStack>, 4> AsyncCallStackVector;
+
+    class AsyncCallChain : public RefCounted<AsyncCallChain> {
+    public:
+        AsyncCallChain() { }
+        AsyncCallChain(const AsyncCallChain& t) : m_callStacks(t.m_callStacks) { }
+        AsyncCallStackVector callStacks() const { return m_callStacks; }
+    private:
+        friend class AsyncCallStackTracker;
+        AsyncCallStackVector m_callStacks;
+    };
+
+    AsyncCallStackTracker();
+
+    bool isEnabled() const { return m_maxAsyncCallStackDepth; }
+    void setAsyncCallStackDepth(int);
+    const AsyncCallChain* currentAsyncCallChain() const;
+
+    void didInstallTimer(ExecutionContext*, int timerId, bool singleShot, const ScriptValue& callFrames);
+    void didRemoveTimer(ExecutionContext*, int timerId);
+    void willFireTimer(ExecutionContext*, int timerId);
+
+    void didRequestAnimationFrame(ExecutionContext*, int callbackId, const ScriptValue& callFrames);
+    void didCancelAnimationFrame(ExecutionContext*, int callbackId);
+    void willFireAnimationFrame(ExecutionContext*, int callbackId);
+
+    void didFireAsyncCall();
+    void clear();
+
+private:
+    PassRefPtr<AsyncCallChain> createAsyncCallChain(const String& description, const ScriptValue& callFrames);
+    static void ensureMaxAsyncCallChainDepth(AsyncCallChain*, unsigned);
+    static bool validateCallFrames(const ScriptValue& callFrames);
+
+    class ExecutionContextData;
+    void contextDestroyed(ExecutionContext*);
+    ExecutionContextData* createContextDataIfNeeded(ExecutionContext*);
+
+    unsigned m_maxAsyncCallStackDepth;
+    RefPtr<AsyncCallChain> m_currentAsyncCallChain;
+    HashMap<ExecutionContext*, ExecutionContextData*> m_executionContextDataMap;
+};
+
+} // namespace WebCore
+
+#endif // !defined(AsyncCallStackTracker_h)