commit e202bd8b71f6aa184c2c8ce6f653755de1331c88
author halcanary <halcanary@google.com> Mon Sep 19 10:27:03 2016 -0700
committer Commit bot <commit-bot@chromium.org> Mon Sep 19 10:27:03 2016 -0700
tree 416db148b602338f9b1444373571ec48e60143d7
parent 88987d83d70654042f7c34f1a92bfd2b8edbe482

SkPDF: SkBitSet gets reset() to make drop() better.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2354583002

Review-Url: https://codereview.chromium.org/2354583002

src/utils/SkBitSet.h

diff --git a/src/utils/SkBitSet.h b/src/utils/SkBitSet.h
index a8585a2..2e2dbeb 100644
--- a/src/utils/SkBitSet.h
+++ b/src/utils/SkBitSet.h
@@ -14,9 +14,11 @@
 class SkBitSet {
 public:
     explicit SkBitSet(int numberOfBits) {
-        SkASSERT(numberOfBits > 0);
+        SkASSERT(numberOfBits >= 0);
         fDwordCount = (numberOfBits + 31) / 32;  // Round up size to 32-bit boundary.
-        fBitData.reset((uint32_t*)sk_calloc_throw(fDwordCount * sizeof(uint32_t)));
+        if (fDwordCount > 0) {
+            fBitData.reset((uint32_t*)sk_calloc_throw(fDwordCount * sizeof(uint32_t)));
+        }
     }
 
     SkBitSet(const SkBitSet&) = delete;