Change SkRecord to use SkArenaAlloc

This CL uses the strategy of allocating raw bytes with the proper
alignment so that SkRecord can manage the object lifetimes.

Change-Id: I73604d41a3c6a12d1e2f7f8419f75b95c0190f68
Reviewed-on: https://skia-review.googlesource.com/13621
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>

1 files changed, 2 insertions, 6 deletions

diff --git a/src/core/SkRecord.cpp b/src/core/SkRecord.cpp
index 3d098c6c89..4df4131340 100644
--- a/src/core/SkRecord.cpp
+++ b/src/core/SkRecord.cpp
@@ -8,9 +8,6 @@
 #include "SkRecord.h"
 #include <algorithm>
 
-SkRecord::SkRecord()
-    : fCount(0), fReserved(0), fAlloc(8/*first malloc at 256 bytes*/) {}
-
 SkRecord::~SkRecord() {
     Destroyer destroyer;
     for (int i = 0; i < this->count(); i++) {
@@ -25,9 +22,8 @@ void SkRecord::grow() {
 }
 
 size_t SkRecord::bytesUsed() const {
-    return sizeof(SkRecord)
-         + fReserved * sizeof(Record)
-         + fAlloc.approxBytesAllocated();
+    size_t bytes = fApproxBytesAllocated + sizeof(SkRecord);
+    return bytes;
 }
 
 void SkRecord::defrag() {