mac: Hook up allocator shim.

base/allocator/allocator_shim_override_cpp_symbols.h

Index: base/allocator/allocator_shim_override_cpp_symbols.h
diff --git a/base/allocator/allocator_shim_override_cpp_symbols.h b/base/allocator/allocator_shim_override_cpp_symbols.h
index 616716fb96f0dda2bc94d18ab18616c5e9acc3f3..8fc15c697a9d932066a64b9b0881fb19f21043ac 100644
--- a/base/allocator/allocator_shim_override_cpp_symbols.h
+++ b/base/allocator/allocator_shim_override_cpp_symbols.h
@@ -14,6 +14,46 @@
 
 #include "base/allocator/allocator_shim_internals.h"
 
+#if defined(OS_MACOSX)
+
+SHIM_ALWAYS_EXPORT void* operator new(size_t size) {
+  return ShimCppNew(size);
+}
+
+SHIM_ALWAYS_EXPORT void operator delete(void* ptr)__THROW {
+  return ShimCppDelete(ptr);
+}
+
+SHIM_ALWAYS_EXPORT void* operator new[](size_t size) {
+  return ShimCppNew(size);
+}
+
+SHIM_ALWAYS_EXPORT void operator delete[](void* ptr) __THROW {
+  return ShimCppDelete(ptr);
+}
+
+SHIM_ALWAYS_EXPORT void* operator new(size_t size,
+                                      const std::nothrow_t&) __THROW {
+  return ShimCppNew(size);
+}
+
+SHIM_ALWAYS_EXPORT void* operator new[](size_t size,
+                                        const std::nothrow_t&) __THROW {
+  return ShimCppNew(size);
+}
+
+SHIM_ALWAYS_EXPORT void operator delete(void* ptr,
+                                        const std::nothrow_t&)__THROW {
+  ShimCppDelete(ptr);
+}
+
+SHIM_ALWAYS_EXPORT void operator delete[](void* ptr,
+                                          const std::nothrow_t&) __THROW {
+  ShimCppDelete(ptr);
+}
+
+#else  // !OS_MACOSX
+
 SHIM_ALWAYS_EXPORT void* operator new(size_t size)
     SHIM_ALIAS_SYMBOL(ShimCppNew);
 
@@ -40,3 +80,5 @@ SHIM_ALWAYS_EXPORT void operator delete(void* p, const std::nothrow_t&) __THROW
 SHIM_ALWAYS_EXPORT void operator delete[](void* p,
                                           const std::nothrow_t&) __THROW
     SHIM_ALIAS_SYMBOL(ShimCppDelete);
+
+#endif  // OS_MACOSX