Use suffixed {uint,int}{8,16,32,64}_t types.

webrtc/base/win32filesystem.h

Index: webrtc/base/win32filesystem.h
diff --git a/webrtc/base/win32filesystem.h b/webrtc/base/win32filesystem.h
index 0ae921843ef661a1e02902a42f7d239052c2f3db..439b2c6268f629c4733ea1ed9c019a400f60bb76 100644
--- a/webrtc/base/win32filesystem.h
+++ b/webrtc/base/win32filesystem.h
@@ -91,7 +91,7 @@ class Win32Filesystem : public FilesystemInterface {
   // Get a temporary folder that is unique to the current user and application.
   virtual bool GetAppTempFolder(Pathname* path);
 
-  virtual bool GetDiskFreeSpace(const Pathname& path, int64 *free_bytes);
+  virtual bool GetDiskFreeSpace(const Pathname& path, int64_t* free_bytes);
 
   virtual Pathname GetCurrentDirectory();
 };