Add sk_calloc and sk_calloc_throw to SkMemory_new_handler.cpp.

base/process/memory_mac.mm

Index: base/process/memory_mac.mm
diff --git a/base/process/memory_mac.mm b/base/process/memory_mac.mm
index dd30e704c8ffc0d98ed17b1b0706db625490e324..d81c8e67b94a04dc8c8a2a787c602bb41797e639 100644
--- a/base/process/memory_mac.mm
+++ b/base/process/memory_mac.mm
@@ -498,6 +498,17 @@ void* UncheckedMalloc(size_t size) {
   return malloc(size);
 }
 
+void* UncheckedCalloc(size_t num_items, size_t size) {
+  if (g_old_calloc) {
+#if ARCH_CPU_32_BITS
+    ScopedClearErrno clear_errno;
+    ThreadLocalBooleanAutoReset flag(g_unchecked_malloc.Pointer(), true);

[Scott Hess - ex-Googler, 2013/09/24 21:05:54]

This reads confusing - maybe change g_unchecked_malloc to g_unchecked_alloc
everywhere, since this is really talking to the malloc library?

But I think it is correct.

[mtklein, 2013/09/24 21:12:18]

You bet.  Was thinking that myself.  Done.

+#endif  // ARCH_CPU_32_BITS
+    return g_old_calloc(malloc_default_zone(), num_items, size);
+  }
+  return calloc(num_items, size);
+}
+
 void EnableTerminationOnOutOfMemory() {
   if (g_oom_killer_enabled)
     return;