Fix overflow in number of bytes to erase.

The width and the height were multiplied as int * int.
Now it is int64_t * int64_t.

BUG=chromium:812519

Change-Id: If60bbdd8ee92748559b2e4f3ab57e4463a8006e8
Reviewed-on: https://skia-review.googlesource.com/109781
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Herb Derby <herb@google.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/core/SkPixmap.cpp b/src/core/SkPixmap.cpp
index 8a0acb913a..19d1d65caa 100644
--- a/src/core/SkPixmap.cpp
+++ b/src/core/SkPixmap.cpp
@@ -123,7 +123,7 @@ bool SkPixmap::erase(SkColor color, const SkIRect& inArea) const {
           && width == this->rowBytesAsPixels()
           && inArea == this->bounds()) {
         // All formats represent SkColor(0) as byte 0.
-        memset(this->writable_addr(), 0, height * rowBytes);
+        memset(this->writable_addr(), 0, (int64_t)height * rowBytes);
         return true;
     }