Fix Android x64 build.

ipc/ipc_message_utils.cc

Index: ipc/ipc_message_utils.cc
diff --git a/ipc/ipc_message_utils.cc b/ipc/ipc_message_utils.cc
index 393685bc38849dbcc17381e618a2a79354401151..52137e22da57d4a8c297fa97bfbc4c460490e7f7 100644
--- a/ipc/ipc_message_utils.cc
+++ b/ipc/ipc_message_utils.cc
@@ -414,7 +414,8 @@ void ParamTraits<unsigned int>::Log(const param_type& p, std::string* l) {
   l->append(base::UintToString(p));
 }
 
-#if defined(OS_WIN) || defined(ARCH_CPU_ARM64) || defined(OS_LINUX)
+#if defined(OS_WIN) || defined(OS_LINUX) || \
+    (defined(OS_ANDROID) && defined(ARCH_CPU_64_BITS))
 void ParamTraits<long>::Log(const param_type& p, std::string* l) {
   l->append(base::Int64ToString(static_cast<int64_t>(p)));
 }