Switch to standard integer types in remoting/host/.

remoting/host/linux/audio_pipe_reader.cc

Index: remoting/host/linux/audio_pipe_reader.cc
diff --git a/remoting/host/linux/audio_pipe_reader.cc b/remoting/host/linux/audio_pipe_reader.cc
index 61a290da25623e206db76092076576543f29ed4f..c8bda1bb190a6ce5fec8a9fc0bb9946b2fbd61bd 100644
--- a/remoting/host/linux/audio_pipe_reader.cc
+++ b/remoting/host/linux/audio_pipe_reader.cc
@@ -5,6 +5,7 @@
 #include "remoting/host/linux/audio_pipe_reader.h"
 
 #include <fcntl.h>
+#include <stddef.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ -147,9 +148,10 @@ void AudioPipeReader::DoCapture() {
   // Calculate how much we need read from the pipe. Pulseaudio doesn't control
   // how much data it writes to the pipe, so we need to pace the stream.
   base::TimeDelta stream_position = base::TimeTicks::Now() - started_time_;
-  int64 stream_position_bytes = stream_position.InMilliseconds() *
-      kSampleBytesPerSecond / base::Time::kMillisecondsPerSecond;
-  int64 bytes_to_read = stream_position_bytes - last_capture_position_;
+  int64_t stream_position_bytes = stream_position.InMilliseconds() *
+                                  kSampleBytesPerSecond /
+                                  base::Time::kMillisecondsPerSecond;
+  int64_t bytes_to_read = stream_position_bytes - last_capture_position_;
 
   std::string data = left_over_bytes_;
   size_t pos = data.size();