Switch to standard integer types in media/.

media/cast/sender/h264_vt_encoder.cc

Index: media/cast/sender/h264_vt_encoder.cc
diff --git a/media/cast/sender/h264_vt_encoder.cc b/media/cast/sender/h264_vt_encoder.cc
index c9f9330caed979f76bd44b98c2e6cba25c0e87c9..30f968f41ed35faaaf92f8b459a9e8f952ebaf3f 100644
--- a/media/cast/sender/h264_vt_encoder.cc
+++ b/media/cast/sender/h264_vt_encoder.cc
@@ -725,7 +725,7 @@ void H264VideoToolboxEncoder::CompressionCallback(void* encoder_opaque,
 
   // Increment the encoder-scoped frame id and assign the new value to this
   // frame. VideoToolbox calls the output callback serially, so this is safe.
-  const uint32 frame_id = ++encoder->last_frame_id_;
+  const uint32_t frame_id = ++encoder->last_frame_id_;
 
   scoped_ptr<SenderEncodedFrame> encoded_frame(new SenderEncodedFrame());
   encoded_frame->frame_id = frame_id;