diff --git a/gfx/2d/BaseRect.h b/gfx/2d/BaseRect.h
index 57d01ba09..b1eed9ddb 100644
--- a/gfx/2d/BaseRect.h
+++ b/gfx/2d/BaseRect.h
@@ -9,6 +9,7 @@
 #include <algorithm>
 #include <cmath>
 #include <ostream>
+#include <limits>
 
 #include "mozilla/Assertions.h"
 #include "mozilla/FloatingPoint.h"
diff --git a/gfx/2d/Matrix.h b/gfx/2d/Matrix.h
index 22a01ca10..e221ba3d2 100644
--- a/gfx/2d/Matrix.h
+++ b/gfx/2d/Matrix.h
@@ -13,6 +13,7 @@
 #include "Quaternion.h"
 #include <iosfwd>
 #include <math.h>
+#include <limits>
 #include "mozilla/Attributes.h"
 #include "mozilla/DebugOnly.h"
 #include "mozilla/FloatingPoint.h"
diff --git a/media/webrtc/trunk/webrtc/modules/audio_coding/codecs/opus/audio_encoder_opus.cc b/media/webrtc/trunk/webrtc/modules/audio_coding/codecs/opus/audio_encoder_opus.cc
index 941e635b1..3668a5047 100644
--- a/media/webrtc/trunk/webrtc/modules/audio_coding/codecs/opus/audio_encoder_opus.cc
+++ b/media/webrtc/trunk/webrtc/modules/audio_coding/codecs/opus/audio_encoder_opus.cc
@@ -8,6 +8,8 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
+#include <limits>
+
 #include "webrtc/modules/audio_coding/codecs/opus/interface/audio_encoder_opus.h"
 
 #include "webrtc/base/checks.h"