Changed typedefs for GLintptr and GLsizeiptr (and ARB variants) to work around conflicts with Skia'…

third_party/mesa/include/GL/glext.h

 #ifndef __glext_h_
 #define __glext_h_
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /*
 ** Copyright (c) 2007-2012 The Khronos Group Inc.
 ** 
@@ skipping 6131 matching lines @@
 /*************************************************************/
 
 #include <stddef.h>
 #ifndef GL_VERSION_2_0
 /* GL type for program/shader text */
 typedef char GLchar;
 #endif
 
 #ifndef GL_VERSION_1_5
 /* GL types for handling large vertex buffer objects */
-typedef ptrdiff_t GLintptr;
-typedef ptrdiff_t GLsizeiptr;
+typedef signed long int GLintptr;
+typedef signed long int GLsizeiptr;
 #endif
 
 #ifndef GL_ARB_vertex_buffer_object
 /* GL types for handling large vertex buffer objects */
-typedef ptrdiff_t GLintptrARB;
-typedef ptrdiff_t GLsizeiptrARB;
+typedef signed long int GLintptrARB;
+typedef signed long int GLsizeiptrARB;
 #endif
 
 #ifndef GL_ARB_shader_objects
 /* GL types for program/shader text and shader object handles */
 typedef char GLcharARB;
 typedef unsigned int GLhandleARB;
 #endif
 
 /* GL type for "half" precision (s10e5) float data in host memory */
 #ifndef GL_ARB_half_float_pixel
@@ skipping 6561 matching lines @@
 typedef void (APIENTRYP PFNGLTEXSTORAGESPARSEAMDPROC) (GLenum target, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLsizei layers, GLbitfield flags);
 typedef void (APIENTRYP PFNGLTEXTURESTORAGESPARSEAMDPROC) (GLuint texture, GLenum target, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLsizei layers, GLbitfield flags);
 #endif
 
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif