SkVarAlloc::approxBytesAllocated

src/core/SkVarAlloc.h

Index: src/core/SkVarAlloc.h
diff --git a/src/core/SkVarAlloc.h b/src/core/SkVarAlloc.h
index 2b5401b7f06bf81a18f9a58afb0b1684551bd13e..9eac6588280213d2d7063da547aecf2fa0b370e6 100644
--- a/src/core/SkVarAlloc.h
+++ b/src/core/SkVarAlloc.h
@@ -23,6 +23,10 @@ public:
         return ptr;
     }
 
+    // Returns our best estimate of the number of bytes we've allocated.
+    // (We intentionally do not track this precisely to save space.)
+    size_t approxBytesAllocated() const;
+
 private:
     void makeSpace(size_t bytes, unsigned flags);