[Oilpan] Unify memory usage reporters of Oilpan

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

Index: third_party/WebKit/Source/platform/heap/ThreadState.h
diff --git a/third_party/WebKit/Source/platform/heap/ThreadState.h b/third_party/WebKit/Source/platform/heap/ThreadState.h
index d4ad238d2bfdb2a8a0e6bfa325e4ca729b3652a7..c5e76cfd4e47824f357c7a615979e9c78415a9ec 100644
--- a/third_party/WebKit/Source/platform/heap/ThreadState.h
+++ b/third_party/WebKit/Source/platform/heap/ThreadState.h
@@ -520,6 +520,13 @@ public:
     void leaveStaticReferenceRegistrationDisabledScope();
 #endif
 
+    void reportMemoryToV8();

[sof, 2016/02/16 09:14:38]

can be private (=> clearly delineating the ThreadState external API is worth it;
it's already far too large.)

[peria, 2016/02/17 02:31:26]

Agree.
Done.

+
+    void resetHeapCounters();
+    void increaseAllocatedObjectSize(size_t);
+    void decreaseAllocatedObjectSize(size_t);
+    void increaseMarkedObjectSize(size_t);
+
 private:
     enum SnapshotType {
         HeapSnapshot,
@@ -678,6 +685,11 @@ private:
     static const int likelyToBePromptlyFreedArraySize = (1 << 8);
     static const int likelyToBePromptlyFreedArrayMask = likelyToBePromptlyFreedArraySize - 1;
     OwnPtr<int[]> m_likelyToBePromptlyFreed;
+
+    // Stats for heap memory of this thread.
+    size_t m_allocatedObjectSize;
+    size_t m_markedObjectSize;
+    size_t m_reportedMemoryToV8;
 };
 
 template<ThreadAffinity affinity> class ThreadStateFor;