[Oilpan] Unify memory usage reporters of Oilpan

third_party/WebKit/Source/platform/heap/HeapPage.cpp

 /*
  * 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
@@ skipping 12 matching lines @@
  * 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.
  */
 
 #include "platform/heap/HeapPage.h"
 
+#include "platform/MemoryUsageProvider.h"
 #include "platform/ScriptForbiddenScope.h"
 #include "platform/Task.h"
 #include "platform/TraceEvent.h"
 #include "platform/heap/BlinkGCMemoryDumpProvider.h"
 #include "platform/heap/CallbackStack.h"
 #include "platform/heap/Heap.h"
 #include "platform/heap/MarkingVisitor.h"
 #include "platform/heap/PageMemory.h"
 #include "platform/heap/PagePool.h"
 #include "platform/heap/SafePoint.h"
@@ skipping 651 matching lines @@
     updateRemainingAllocationSize();
     m_currentAllocationPoint = point;
     m_lastRemainingAllocationSize = m_remainingAllocationSize = size;
 }
 
 Address NormalPageHeap::outOfLineAllocate(size_t allocationSize, size_t gcInfoIndex)
 {
     ASSERT(allocationSize > remainingAllocationSize());
     ASSERT(allocationSize >= allocationGranularity);
 
+    MemoryUsageProvider::instance()->adjustAmountOfAllocatedMemory();

[peria, 2016/02/04 08:33:51]

Currently this is the only entry point to report memory usages.
It means Blink reports almost nothing about deallocations now.

+
     // 1. If this allocation is big enough, allocate a large object.
     if (allocationSize >= largeObjectSizeThreshold) {
         // TODO(sof): support eagerly finalized large objects, if ever needed.
         RELEASE_ASSERT(heapIndex() != BlinkGC::EagerSweepHeapIndex);
         LargeObjectHeap* largeObjectHeap = static_cast<LargeObjectHeap*>(threadState()->heap(BlinkGC::LargeObjectHeapIndex));
         Address largeObject = largeObjectHeap->allocateLargeObjectPage(allocationSize, gcInfoIndex);
         ASAN_MARK_LARGE_VECTOR_CONTAINER(this, largeObject);
         return largeObject;
     }
 
@@ skipping 860 matching lines @@
 
     m_hasEntries = true;
     size_t index = hash(address);
     ASSERT(!(index & 1));
     Address cachePage = roundToBlinkPageStart(address);
     m_entries[index + 1] = m_entries[index];
     m_entries[index] = cachePage;
 }
 
 } // namespace blink