Further work on sRGB support.

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 136 matching lines @@
 #define GR_GL_SAMPLE_ALPHA_TO_COVERAGE       0x809E
 #define GR_GL_SAMPLE_COVERAGE                0x80A0
 #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
 
 /* 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 */
@@ skipping 707 matching lines @@
 // NV_path_rendering extension to EXT_direct_state_access:
 // [the matrix functions] must support the PATH_PROJECTION_NV and
 // PATH_MODELVIEW_NV tokens for matrixMode.
 #define GR_GL_PATH_PROJECTION                               0x1701
 #define GR_GL_PATH_MODELVIEW                                0x1700
 
 /*  ARM specific define for MSAA support on framebuffer fetch */
 #define GR_GL_FETCH_PER_SAMPLE_ARM                          0x8F65
 
 #endif