Oilpan: Introduce GCTaskRunner

third_party/WebKit/Source/platform/heap/PendingGCRunner.h

Index: third_party/WebKit/Source/platform/heap/PendingGCRunner.h
diff --git a/third_party/WebKit/Source/platform/heap/PendingGCRunner.h b/third_party/WebKit/Source/platform/heap/PendingGCRunner.h
deleted file mode 100644
index d983be6b5002a64432ffa63fdec6c3af1c151d83..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/platform/heap/PendingGCRunner.h
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-/*
- * Copyright (C) 2014 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 PendingGCRunner_h
-#define PendingGCRunner_h
-
-#include "platform/heap/ThreadState.h"
-#include "public/platform/WebTaskRunner.h"
-#include "public/platform/WebThread.h"
-#include "public/platform/WebTraceLocation.h"
-
-namespace blink {
-
-class PendingGCRunner : public WebThread::TaskObserver {
-public:
-    PendingGCRunner() : m_nesting(0) { }
-
-    ~PendingGCRunner()
-    {
-        // m_nesting can be 1 if this was unregistered in a task and
-        // didProcessTask was not called.
-        ASSERT(!m_nesting || m_nesting == 1);
-    }
-
-    virtual void willProcessTask()
-    {
-        m_nesting++;
-    }
-
-    virtual void didProcessTask()
-    {
-        // In the production code WebKit::initialize is called from inside the
-        // message loop so we can get didProcessTask() without corresponding
-        // willProcessTask once. This is benign.
-        if (m_nesting)
-            m_nesting--;
-
-        ThreadState* state = ThreadState::current();
-        state->safePoint(m_nesting ? BlinkGC::HeapPointersOnStack : BlinkGC::NoHeapPointersOnStack);
-    }
-
-private:
-    int m_nesting;
-};
-
-} // namespace blink
-
-#endif