<chromium> Fix conflicting types for 64 bit Windows Desktop GL.

Fixes the redefinition of pointer types to appropriate values
on 64 Bit Windows.

Change-Id: Ia1735a5ae5c9dc12dab80e7670dea8270ebf089f
Reviewed-by: Jani Heikkinen <jani.heikkinen@digia.com>
Reviewed-by: Zeno Albisser <zeno.albisser@digia.com>

chromium/gpu/command_buffer/common/gles2_cmd_format.h

@@ -39,8 +39,14 @@ typedef float GLclampf;
 typedef double GLdouble;
 typedef double GLclampd;
 typedef void GLvoid;
+
+#ifdef _WIN64
+typedef signed long long int GLintptr;
+typedef signed long long int GLsizeiptr;
+#else
 typedef khronos_intptr_t GLintptr;
 typedef khronos_ssize_t  GLsizeiptr;
+#endif
 
 namespace gpu {
 namespace gles2 {