Update from https://crrev.com/306655

cc/resources/picture.cc

Index: cc/resources/picture.cc
diff --git a/cc/resources/picture.cc b/cc/resources/picture.cc
index 9a45ad19a67b666a4ce8923aa7bdf41a71546fff..5b9057160b2dadd1125dd7bc7117b6e368355d81 100644
--- a/cc/resources/picture.cc
+++ b/cc/resources/picture.cc
@@ -25,6 +25,7 @@
 #include "third_party/skia/include/core/SkPictureRecorder.h"
 #include "third_party/skia/include/core/SkStream.h"
 #include "third_party/skia/include/utils/SkNullCanvas.h"
+#include "third_party/skia/include/utils/SkPictureUtils.h"
 #include "ui/gfx/codec/jpeg_codec.h"
 #include "ui/gfx/codec/png_codec.h"
 #include "ui/gfx/geometry/rect_conversions.h"
@@ -192,6 +193,11 @@ int Picture::ApproximateOpCount() const {
   return picture_->approximateOpCount();
 }
 
+size_t Picture::ApproximateMemoryUsage() const {
+  DCHECK(picture_);
+  return SkPictureUtils::ApproximateBytesUsed(picture_.get());
+}
+
 bool Picture::HasText() const {
   DCHECK(picture_);
   return picture_->hasText();