Initial version of external_oes texture support and unit test

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 910 matching lines @@
 #define GR_GL_DEBUG_SEVERITY_NOTIFICATION                   0x826B
 #define GR_GL_STACK_UNDERFLOW                               0x0504
 #define GR_GL_STACK_OVERFLOW                                0x0503
 #define GR_GL_BUFFER                                        0x82E0
 #define GR_GL_SHADER                                        0x82E1
 #define GR_GL_PROGRAM                                       0x82E2
 #define GR_GL_QUERY                                         0x82E3
 #define GR_GL_PROGRAM_PIPELINE                              0x82E4
 #define GR_GL_SAMPLER                                       0x82E6
 
+/* GL_OES_EGL_image_external */
+#define GR_GL_TEXTURE_EXTERNAL                              0x8D65
+
 /* EGL Defines */
 #define GR_EGL_NO_DISPLAY                                   ((GrEGLDisplay)0)
 #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