Implement SkPicture::bytesUsed() for SkRecord backend

src/core/SkTileGrid.cpp

Index: src/core/SkTileGrid.cpp
diff --git a/src/core/SkTileGrid.cpp b/src/core/SkTileGrid.cpp
index 17102f50e2f75929f9e63cc71f8c55e33a5c0de1..664314d1d8063d3786c374eed2a181cfa9fcee86 100644
--- a/src/core/SkTileGrid.cpp
+++ b/src/core/SkTileGrid.cpp
@@ -164,3 +164,14 @@ void SkTileGrid::rewindInserts() {
         }
     }
 }
+
+size_t SkTileGrid::bytesUsed() const {
+    size_t byteCount = sizeof(SkTileGrid);
+
+    for (size_t i = 0; i < fCount; i++) {
+        byteCount = fTiles[i].reserved() * sizeof(Entry);

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

This is going to need an update too.

+    }
+
+    return byteCount;
+}
+