WebVR: implement SetSurfaceHandleCHROMIUM extension for gvr_device.

gpu/command_buffer/cmd_buffer_functions.txt

 // 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 read by build_gles2_cmd_buffer.py to generate commands.
 
 GL_APICALL void         GL_APIENTRY glActiveTexture (GLenum texture);
 GL_APICALL void         GL_APIENTRY glAttachShader (GLidProgram program, GLidShader shader);
 GL_APICALL void         GL_APIENTRY glBindAttribLocation (GLidProgram program, GLuint index, const char* name);
 GL_APICALL void         GL_APIENTRY glBindBuffer (GLenumBufferTarget target, GLidBindBuffer buffer);
@@ skipping 345 matching lines @@
 
 // Extension EXT_blend_func_extended
 GL_APICALL void         GL_APIENTRY glBindFragDataLocationIndexedEXT (GLidProgram program, GLuint colorNumber, GLuint index, const char* name);
 GL_APICALL void         GL_APIENTRY glBindFragDataLocationEXT (GLidProgram program, GLuint colorNumber, const char* name);
 GL_APICALL GLint        GL_APIENTRY glGetFragDataIndexEXT (GLidProgram program, const char* name);
 
 // Extension CHROMIUM_stream_texture_matrix
 GL_APICALL void         GL_APIENTRY glUniformMatrix4fvStreamTextureMatrixCHROMIUM (GLintUniformLocation location, GLbooleanFalseOnly transpose, const GLfloat* transform);
 
 GL_APICALL void         GL_APIENTRY glSwapBuffersWithDamageCHROMIUM (GLint x, GLint y, GLint width, GLint height);
+
+// WebVR temporary plumbing

[bajones, 2016/10/28 00:41:22]

Comment doesn't make much sense if we're landing it now. I'd recommend moving
this function up to around line 317, under the "Non-GL commands" section.

[klausw, 2016/11/08 02:18:30]

Done.

+GL_APICALL void GL_APIENTRY glSetSurfaceHandleCHROMIUM (GLint surfaceHandle);