Implement SkPicture::bytesUsed() for SkRecord backend

src/core/SkRecord.h

Index: src/core/SkRecord.h
diff --git a/src/core/SkRecord.h b/src/core/SkRecord.h
index 96da69b12ef8c150729c07c8e846fab5452cb1dc..39f813791dc07168912723abdcdf900ff096e049 100644
--- a/src/core/SkRecord.h
+++ b/src/core/SkRecord.h
@@ -110,6 +110,10 @@ public:
         return fRecords[i].set(this->allocCommand<T>());
     }
 
+    size_t bytesUsed() const { return fAlloc.totalCapacity() +

[mtklein, 2014/11/17 20:19:32]

fAlloc doesn't know how large it is any more, so you'll need to add a new member
to SkRecord and update it when calling alloc().

+                                      fReserved * (sizeof(Record) + sizeof(Type8)) +
+                                      sizeof(SkRecord); }
+
 private:
     // Implementation notes!
     //