Fixed compilation with mingw.

Change-Id: Icc40c61b5c6df5a0aed4e175f1724ca55f981625
Reviewed-on: https://chromium-review.googlesource.com/267412
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
diff --git a/src/libANGLE/renderer/gl/FramebufferGL.cpp b/src/libANGLE/renderer/gl/FramebufferGL.cpp
index 2f19d84..e75692a 100644
--- a/src/libANGLE/renderer/gl/FramebufferGL.cpp
+++ b/src/libANGLE/renderer/gl/FramebufferGL.cpp
@@ -15,7 +15,7 @@
 #include "libANGLE/angletypes.h"
 #include "libANGLE/formatutils.h"
 #include "libANGLE/renderer/gl/FunctionsGL.h"
-#include "libANGLE/renderer/gl/RenderBufferGL.h"
+#include "libANGLE/renderer/gl/RenderbufferGL.h"
 #include "libANGLE/renderer/gl/StateManagerGL.h"
 #include "libANGLE/renderer/gl/TextureGL.h"