added support for glMinSampleShading

src/gpu/gl/GrGLDefines.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 
 #ifndef GrGLDefines_DEFINED
@@ skipping 147 matching lines @@
 #define GR_GL_POLYGON_OFFSET_FILL            0x8037
 #define GR_GL_POLYGON_SMOOTH                 0x0B41
 #define GR_GL_POLYGON_STIPPLE                0x0B42
 #define GR_GL_COLOR_LOGIC_OP                 0x0BF2
 #define GR_GL_COLOR_TABLE                    0x80D0
 #define GR_GL_INDEX_LOGIC_OP                 0x0BF1
 #define GR_GL_VERTEX_PROGRAM_POINT_SIZE      0x8642
 #define GR_GL_LINE_STIPPLE                   0x0B24
 #define GR_GL_FRAMEBUFFER_SRGB               0x8DB9
 #define GR_GL_SHADER_PIXEL_LOCAL_STORAGE     0x8F64
-
+#define GR_GL_SAMPLE_SHADING                 0x8C36
+ 
 /* ErrorCode */
 #define GR_GL_NO_ERROR                       0
 #define GR_GL_INVALID_ENUM                   0x0500
 #define GR_GL_INVALID_VALUE                  0x0501
 #define GR_GL_INVALID_OPERATION              0x0502
 #define GR_GL_OUT_OF_MEMORY                  0x0505
 #define GR_GL_CONTEXT_LOST                   0x300E  // TODO(gman): What value?
 
 /* FrontFaceDirection */
 #define GR_GL_CW                             0x0900
@@ skipping 785 matching lines @@
 #define GR_EGL_EXTENSIONS                                   0x3055
 #define GR_EGL_GL_TEXTURE_2D                                0x30B1
 #define GR_EGL_GL_TEXTURE_LEVEL                             0x30BC
 #define GR_EGL_IMAGE_PRESERVED                              0x30D2
 #define GR_EGL_FALSE                                        0x0
 #define GR_EGL_TRUE                                         0x1
 #define GR_EGL_NONE                                         0x3038
 #define GR_EGL_NO_IMAGE                                    ((GrEGLImage)0)
 
 #endif