UnmapImageCHROMIUMHelper 3983 gpu/command_buffer/client/gles2_implementation.cc   UnmapImageCHROMIUMHelper(image_id);
UnmapImageCHROMIUMHelper  550 gpu/command_buffer/client/gles2_implementation.h   void UnmapImageCHROMIUMHelper(GLuint image_id);