Updated GLintptr and GLsizeiptr to be the appropriate types on 64 bit Windows

BUG=326382
R=reed@google.com, bsalomon@google.com

Author: bajones@chromium.org

Review URL: https://codereview.chromium.org/111403003

git-svn-id: http://skia.googlecode.com/svn/trunk@12694 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/gpu/gl/GrGLFunctions.h b/include/gpu/gl/GrGLFunctions.h
index 7417685..a8b48ca 100644
--- a/include/gpu/gl/GrGLFunctions.h
+++ b/include/gpu/gl/GrGLFunctions.h
@@ -35,8 +35,13 @@
 typedef double GrGLdouble;
 typedef double GrGLclampd;
 typedef void GrGLvoid;
-typedef long GrGLintptr;
-typedef long GrGLsizeiptr;
+#ifdef _WIN64
+typedef signed long long int GrGLintptr;
+typedef signed long long int GrGLsizeiptr;
+#else
+typedef signed long int GrGLintptr;
+typedef signed long int GrGLsizeiptr;
+#endif
 
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