Fix a memory leak in ResourceDispatcher...

base/shared_memory_posix.cc

Index: base/shared_memory_posix.cc
===================================================================
--- base/shared_memory_posix.cc	(revision 15966)
+++ base/shared_memory_posix.cc	(working copy)
@@ -70,6 +70,12 @@
   return SharedMemoryHandle();
 }
 
+// static
+void SharedMemory::CloseHandle(const SharedMemoryHandle& handle) {
+  DCHECK(handle.fd >= 0);
+  close(handle.fd);
+}
+
 bool SharedMemory::Create(const std::wstring &name, bool read_only,
                           bool open_existing, size_t size) {
   read_only_ = read_only;