Revert of Switch to standard integer types in sandbox/.

sandbox/win/src/internal_types.h

Index: sandbox/win/src/internal_types.h
diff --git a/sandbox/win/src/internal_types.h b/sandbox/win/src/internal_types.h
index e1028189d8057916478e41f4074ae88b883f4fa2..026bedb06422f0e416e54e58c67944d2f8ff3e66 100644
--- a/sandbox/win/src/internal_types.h
+++ b/sandbox/win/src/internal_types.h
@@ -4,8 +4,6 @@
 
 #ifndef SANDBOX_WIN_SRC_INTERNAL_TYPES_H_
 #define SANDBOX_WIN_SRC_INTERNAL_TYPES_H_
-
-#include <stdint.h>
 
 namespace sandbox {
 
@@ -30,16 +28,18 @@
 // Encapsulates a pointer to a buffer and the size of the buffer.
 class CountedBuffer {
  public:
-  CountedBuffer(void* buffer, uint32_t size) : size_(size), buffer_(buffer) {}
+  CountedBuffer(void* buffer, uint32 size) : size_(size), buffer_(buffer) {}
 
-  uint32_t Size() const { return size_; }
+  uint32 Size() const {
+    return size_;
+  }
 
   void* Buffer() const {
     return buffer_;
   }
 
  private:
-  uint32_t size_;
+  uint32 size_;
   void* buffer_;
 };