Linux: use generated shim headers for system mesa.

gpu/GLES2/gl2extchromium.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // DO NOT EDIT!
 
 // This file contains Chromium-specific GLES2 extensions declarations.
 
@@ skipping 279 matching lines @@
 
 /* GL_CHROMIUM_texture_compression_dxt3 */
 #ifndef GL_CHROMIUM_texture_compression_dxt3
 #define GL_CHROMIUM_texture_compression_dxt3 1
 
 #ifndef GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
 #define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2
 #endif
 #endif  /* GL_CHROMIUM_texture_compression_dxt3 */
 
+/* GL_ANGLE_instanced_arrays */
+#ifndef GL_ANGLE_instanced_arrays
+#define GL_ANGLE_instanced_arrays 1
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glDrawArraysInstancedANGLE(
+    GLenum mode, GLint first, GLsizei count, GLsizei primcount);
+#endif
+typedef void (
+    GL_APIENTRYP PFNGLDRAWARRAYSINSTANCEDANGLEPROC) (
+        GLenum mode, GLint first, GLsizei count, GLsizei primcount);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glDrawElementsInstancedANGLE(
+    GLenum mode, GLsizei count, GLenum type, const void* indices,
+    GLsizei primcount);
+#endif
+typedef void (
+    GL_APIENTRYP PFNGLDRAWELEMENTSINSTANCEDANGLEPROC) (
+        GLenum mode, GLsizei count, GLenum type, const void* indices,
+        GLsizei primcount);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glVertexAttribDivisorANGLE(
+    GLuint index, GLuint divisor);
+#endif
+typedef void (
+    GL_APIENTRYP PFNGLVERTEXATTRIBDIVISORANGLEPROC) (
+        GLuint index, GLuint divisor);
+#endif  /* GL_ANGLE_instanced_arrays */
+
 /* GL_CHROMIUM_texture_compression_dxt5 */
 #ifndef GL_CHROMIUM_texture_compression_dxt5
 #define GL_CHROMIUM_texture_compression_dxt5 1
 
 #ifndef GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
 #define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3
 #endif
 #endif  /* GL_CHROMIUM_texture_compression_dxt5 */
 
 /* GL_CHROMIUM_async_pixel_transfers */
@@ skipping 150 matching lines @@
 /* GL_CHROMIUM_front_buffer_cached */
 #ifndef GL_CHROMIUM_front_buffer_cached
 #define GL_CHROMIUM_front_buffer_cached 1
 #endif  /* GL_CHROMIUM_front_buffer_cached */
 #ifdef __cplusplus
 }
 #endif
 
 #endif  // GPU_GLES2_GL2EXTCHROMIUM_H_