Switch to standard integer types in gpu/.

gpu/command_buffer/client/ring_buffer.h

Index: gpu/command_buffer/client/ring_buffer.h
diff --git a/gpu/command_buffer/client/ring_buffer.h b/gpu/command_buffer/client/ring_buffer.h
index ff20a4c05fe461a9a537acc7d8f7874c7dfff143..083cb018ff59e5784cb8a8ba045aa0ee4e91eab4 100644
--- a/gpu/command_buffer/client/ring_buffer.h
+++ b/gpu/command_buffer/client/ring_buffer.h
@@ -7,6 +7,8 @@
 #ifndef GPU_COMMAND_BUFFER_CLIENT_RING_BUFFER_H_
 #define GPU_COMMAND_BUFFER_CLIENT_RING_BUFFER_H_
 
+#include <stdint.h>
+
 #include <deque>
 
 #include "base/logging.h"
@@ -75,12 +77,12 @@ class GPU_EXPORT RingBuffer {
 
   // Gets a pointer to a memory block given the base memory and the offset.
   void* GetPointer(RingBuffer::Offset offset) const {
-    return static_cast<int8*>(base_) + offset;
+    return static_cast<int8_t*>(base_) + offset;
   }
 
   // Gets the offset to a memory block given the base memory and the address.
   RingBuffer::Offset GetOffset(void* pointer) const {
-    return static_cast<int8*>(pointer) - static_cast<int8*>(base_);
+    return static_cast<int8_t*>(pointer) - static_cast<int8_t*>(base_);
   }
 
   // Rounds the given size to the alignment in use.