[Oilpan] Unify memory usage reporters of Oilpan

third_party/WebKit/Source/platform/graphics/Pattern.h

Index: third_party/WebKit/Source/platform/graphics/Pattern.h
diff --git a/third_party/WebKit/Source/platform/graphics/Pattern.h b/third_party/WebKit/Source/platform/graphics/Pattern.h
index c2068ea9b0d91b8f1d3e562842fd01488c1d9506..9922f1d86b880368a0fe4f50837a6613e4caec6a 100644
--- a/third_party/WebKit/Source/platform/graphics/Pattern.h
+++ b/third_party/WebKit/Source/platform/graphics/Pattern.h
@@ -73,16 +73,13 @@ public:
 protected:
     virtual PassRefPtr<SkShader> createShader() = 0;
 
-    void adjustExternalMemoryAllocated(int64_t delta);
-
     RepeatMode m_repeatMode;
     AffineTransform m_patternSpaceTransformation;
 
-    Pattern(RepeatMode, int64_t externalMemoryAllocated = 0);
+    Pattern(RepeatMode);
 
 private:
     RefPtr<SkShader> m_pattern;
-    int64_t m_externalMemoryAllocated;
 };
 
 } // namespace blink