[GPU] GLES2 lost context recovery

third_party/npapi/bindings/npapi_extensions.h

 /* Copyright (c) 2006-2009 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 _NP_EXTENSIONS_H_
 #define _NP_EXTENSIONS_H_
 
 #include "third_party/npapi/bindings/npapi.h"
 
@@ skipping 254 matching lines @@
 
 /* 3D -----------------------------------------------------------------------*/
 
 #define NPPepper3DDevice 2
 
 typedef struct _NPDeviceContext3DConfig {
   int32 commandBufferSize;
 } NPDeviceContext3DConfig;
 
 typedef enum _NPDeviceContext3DError {
+  // No error has ocurred.
   NPDeviceContext3DError_NoError,
+
+  // The size of a command was invalid.
   NPDeviceContext3DError_InvalidSize,
+
+  // An offset was out of bounds.
   NPDeviceContext3DError_OutOfBounds,
+
+  // A command was not recognized.
   NPDeviceContext3DError_UnknownCommand,
+
+  // The arguments to a command were invalid.
   NPDeviceContext3DError_InvalidArguments,
+
+  // The 3D context was lost, for example due to a power management event. The
+  // context must be destroyed and a new one created.
+  NPDeviceContext3DError_LostContext,
+
+  // Any other error.
   NPDeviceContext3DError_GenericError
 } NPDeviceContext3DError;
 
 typedef struct _NPDeviceContext3D
 {
   void* reserved;
 
   // Buffer in which commands are stored.
   void* commandBuffer;
   int32 commandBufferSize;
@@ skipping 89 matching lines @@
 } NPDeviceContextAudioConfig;
 
 struct _NPDeviceContextAudio {
   NPDeviceContextAudioConfig config;
   void *outBuffer;
   void *inBuffer;
   void *reserved;
 };
 
 #endif  /* _NP_EXTENSIONS_H_ */