Remove all uses of GG_UINT32_C.

media/cast/audio_sender/audio_encoder_unittest.cc

Index: media/cast/audio_sender/audio_encoder_unittest.cc
diff --git a/media/cast/audio_sender/audio_encoder_unittest.cc b/media/cast/audio_sender/audio_encoder_unittest.cc
index 52b8e563348c02d4ac95940dcd2ee93bfe3a1475..e2a467ed8dba4eb4acbbd0be5a393d1d65190372 100644
--- a/media/cast/audio_sender/audio_encoder_unittest.cc
+++ b/media/cast/audio_sender/audio_encoder_unittest.cc
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <stdint.h>
+
 #include <sstream>
 #include <string>
 
@@ -20,7 +22,7 @@
 namespace media {
 namespace cast {
 
-static const int64 kStartMillisecond = GG_INT64_C(12345678900000);
+static const int64 kStartMillisecond = INT64_C(12345678900000);
 
 namespace {