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

webrtc/base/x11windowpicker.h

Index: webrtc/base/x11windowpicker.h
diff --git a/webrtc/base/x11windowpicker.h b/webrtc/base/x11windowpicker.h
index b340b884292ffc54b6e40c372a44028c171baea0..501adf5820be911e2f3564f11a433d3241aa1c40 100644
--- a/webrtc/base/x11windowpicker.h
+++ b/webrtc/base/x11windowpicker.h
@@ -38,10 +38,10 @@ class X11WindowPicker : public WindowPicker {
   bool GetDesktopDimensions(const DesktopId& id,
                             int* width,
                             int* height) override;
-  uint8* GetWindowIcon(const WindowId& id, int* width, int* height);
-  uint8* GetWindowThumbnail(const WindowId& id, int width, int height);
+  uint8_t* GetWindowIcon(const WindowId& id, int* width, int* height);
+  uint8_t* GetWindowThumbnail(const WindowId& id, int width, int height);
   int GetNumDesktops();
-  uint8* GetDesktopThumbnail(const DesktopId& id, int width, int height);
+  uint8_t* GetDesktopThumbnail(const DesktopId& id, int width, int height);
 
  private:
   scoped_ptr<XWindowEnumerator> enumerator_;