Exposed support for dynamically enabling extensions in command buffer...

gpu/command_buffer/client/gles2_implementation.h

 // Copyright (c) 2009 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.
 
 #ifndef GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_H_
 #define GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_H_
 
 #include <GLES2/gl2.h>
 
 #include <map>
@@ skipping 361 matching lines @@
 #endif
 
   // Current GL error bits.
   uint32 error_bits_;
 
   // Map of GLenum to Strings for glGetString.  We need to cache these because
   // the pointer passed back to the client has to remain valid for eternity.
   typedef std::map<uint32, std::set<std::string> > GLStringMap;
   GLStringMap gl_strings_;
 
+  // Similar cache for glGetRequestableExtensionsCHROMIUM. We don't
+  // have an enum for this so handle it separately.
+  std::set<std::string> requestable_extensions_set_;
+
   typedef std::map<const void*, MappedBuffer> MappedBufferMap;
   MappedBufferMap mapped_buffers_;
 
   typedef std::map<const void*, MappedTexture> MappedTextureMap;
   MappedTextureMap mapped_textures_;
 
   scoped_ptr<MappedMemoryManager> mapped_memory_;
 
   DISALLOW_COPY_AND_ASSIGN(GLES2Implementation);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_H_