implement getBufferSubDataAsync prototype

gpu/command_buffer/common/gles2_cmd_ids_autogen.h

 // Copyright 2014 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 auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 302 matching lines @@
   OP(StencilThenCoverFillPathCHROMIUM)                     /* 554 */ \
   OP(StencilThenCoverStrokePathCHROMIUM)                   /* 555 */ \
   OP(StencilFillPathInstancedCHROMIUM)                     /* 556 */ \
   OP(StencilStrokePathInstancedCHROMIUM)                   /* 557 */ \
   OP(CoverFillPathInstancedCHROMIUM)                       /* 558 */ \
   OP(CoverStrokePathInstancedCHROMIUM)                     /* 559 */ \
   OP(StencilThenCoverFillPathInstancedCHROMIUM)            /* 560 */ \
   OP(StencilThenCoverStrokePathInstancedCHROMIUM)          /* 561 */ \
   OP(BindFragmentInputLocationCHROMIUMBucket)              /* 562 */ \
   OP(ProgramPathFragmentInputGenCHROMIUM)                  /* 563 */ \
-  OP(CoverageModulationCHROMIUM)                           /* 564 */ \
-  OP(BlendBarrierKHR)                                      /* 565 */ \
-  OP(ApplyScreenSpaceAntialiasingCHROMIUM)                 /* 566 */ \
-  OP(BindFragDataLocationIndexedEXTBucket)                 /* 567 */ \
-  OP(BindFragDataLocationEXTBucket)                        /* 568 */ \
-  OP(GetFragDataIndexEXT)                                  /* 569 */ \
-  OP(UniformMatrix4fvStreamTextureMatrixCHROMIUMImmediate) /* 570 */ \
-  OP(SwapBuffersWithDamageCHROMIUM)                        /* 571 */
+  OP(GetBufferSubDataAsyncCHROMIUM)                        /* 564 */ \
+  OP(CoverageModulationCHROMIUM)                           /* 565 */ \
+  OP(BlendBarrierKHR)                                      /* 566 */ \
+  OP(ApplyScreenSpaceAntialiasingCHROMIUM)                 /* 567 */ \
+  OP(BindFragDataLocationIndexedEXTBucket)                 /* 568 */ \
+  OP(BindFragDataLocationEXTBucket)                        /* 569 */ \
+  OP(GetFragDataIndexEXT)                                  /* 570 */ \
+  OP(UniformMatrix4fvStreamTextureMatrixCHROMIUMImmediate) /* 571 */ \
+  OP(SwapBuffersWithDamageCHROMIUM)                        /* 572 */
 
 enum CommandId {
   kOneBeforeStartPoint =
       cmd::kLastCommonId,  // All GLES2 commands start after this.
 #define GLES2_CMD_OP(name) k##name,
   GLES2_COMMAND_LIST(GLES2_CMD_OP)
 #undef GLES2_CMD_OP
       kNumCommands,
   kFirstGLES2Command = kOneBeforeStartPoint + 1
 };
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_IDS_AUTOGEN_H_