Update from https://crrev.com/317530

gpu/command_buffer/common/gles2_cmd_format_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!
 
 #ifndef GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_FORMAT_AUTOGEN_H_
 #define GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_FORMAT_AUTOGEN_H_
 
+#define GL_SYNC_FLUSH_COMMANDS_BIT 0x00000001
 #define GL_SYNC_GPU_COMMANDS_COMPLETE 0x9117
 
 struct ActiveTexture {
   typedef ActiveTexture ValueType;
   static const CommandId kCmdId = kActiveTexture;
   static const cmd::ArgFlags kArgFlags = cmd::kFixed;
   static const uint8 cmd_flags = CMD_FLAG_SET_TRACE_LEVEL(3);
 
   static uint32_t ComputeSize() {
     return static_cast<uint32_t>(sizeof(ValueType));  // NOLINT
@@ skipping 1138 matching lines @@
   gpu::CommandHeader header;
   int32_t s;
 };
 
 static_assert(sizeof(ClearStencil) == 8, "size of ClearStencil should be 8");
 static_assert(offsetof(ClearStencil, header) == 0,
               "offset of ClearStencil header should be 0");
 static_assert(offsetof(ClearStencil, s) == 4,
               "offset of ClearStencil s should be 4");
 
+struct ClientWaitSync {
+  typedef ClientWaitSync ValueType;
+  static const CommandId kCmdId = kClientWaitSync;
+  static const cmd::ArgFlags kArgFlags = cmd::kFixed;
+  static const uint8 cmd_flags = CMD_FLAG_SET_TRACE_LEVEL(3);
+
+  typedef GLenum Result;
+
+  static uint32_t ComputeSize() {
+    return static_cast<uint32_t>(sizeof(ValueType));  // NOLINT
+  }
+
+  void SetHeader() { header.SetCmd<ValueType>(); }
+
+  void Init(GLuint _sync,
+            GLbitfield _flags,
+            GLuint _timeout_0,
+            GLuint _timeout_1,
+            uint32_t _result_shm_id,
+            uint32_t _result_shm_offset) {
+    SetHeader();
+    sync = _sync;
+    flags = _flags;
+    timeout_0 = _timeout_0;
+    timeout_1 = _timeout_1;
+    result_shm_id = _result_shm_id;
+    result_shm_offset = _result_shm_offset;
+  }
+
+  void* Set(void* cmd,
+            GLuint _sync,
+            GLbitfield _flags,
+            GLuint _timeout_0,
+            GLuint _timeout_1,
+            uint32_t _result_shm_id,
+            uint32_t _result_shm_offset) {
+    static_cast<ValueType*>(cmd)->Init(_sync, _flags, _timeout_0, _timeout_1,
+                                       _result_shm_id, _result_shm_offset);
+    return NextCmdAddress<ValueType>(cmd);
+  }
+
+  gpu::CommandHeader header;
+  uint32_t sync;
+  uint32_t flags;
+  uint32_t timeout_0;
+  uint32_t timeout_1;
+  uint32_t result_shm_id;
+  uint32_t result_shm_offset;
+};
+
+static_assert(sizeof(ClientWaitSync) == 28,
+              "size of ClientWaitSync should be 28");
+static_assert(offsetof(ClientWaitSync, header) == 0,
+              "offset of ClientWaitSync header should be 0");
+static_assert(offsetof(ClientWaitSync, sync) == 4,
+              "offset of ClientWaitSync sync should be 4");
+static_assert(offsetof(ClientWaitSync, flags) == 8,
+              "offset of ClientWaitSync flags should be 8");
+static_assert(offsetof(ClientWaitSync, timeout_0) == 12,
+              "offset of ClientWaitSync timeout_0 should be 12");
+static_assert(offsetof(ClientWaitSync, timeout_1) == 16,
+              "offset of ClientWaitSync timeout_1 should be 16");
+static_assert(offsetof(ClientWaitSync, result_shm_id) == 20,
+              "offset of ClientWaitSync result_shm_id should be 20");
+static_assert(offsetof(ClientWaitSync, result_shm_offset) == 24,
+              "offset of ClientWaitSync result_shm_offset should be 24");
+
 struct ColorMask {
   typedef ColorMask ValueType;
   static const CommandId kCmdId = kColorMask;
   static const cmd::ArgFlags kArgFlags = cmd::kFixed;
   static const uint8 cmd_flags = CMD_FLAG_SET_TRACE_LEVEL(3);
 
   static uint32_t ComputeSize() {
     return static_cast<uint32_t>(sizeof(ValueType));  // NOLINT
   }
 
@@ skipping 8597 matching lines @@
 static_assert(sizeof(Viewport) == 20, "size of Viewport should be 20");
 static_assert(offsetof(Viewport, header) == 0,
               "offset of Viewport header should be 0");
 static_assert(offsetof(Viewport, x) == 4, "offset of Viewport x should be 4");
 static_assert(offsetof(Viewport, y) == 8, "offset of Viewport y should be 8");
 static_assert(offsetof(Viewport, width) == 12,
               "offset of Viewport width should be 12");
 static_assert(offsetof(Viewport, height) == 16,
               "offset of Viewport height should be 16");
 
+struct WaitSync {
+  typedef WaitSync ValueType;
+  static const CommandId kCmdId = kWaitSync;
+  static const cmd::ArgFlags kArgFlags = cmd::kFixed;
+  static const uint8 cmd_flags = CMD_FLAG_SET_TRACE_LEVEL(3);
+
+  static uint32_t ComputeSize() {
+    return static_cast<uint32_t>(sizeof(ValueType));  // NOLINT
+  }
+
+  void SetHeader() { header.SetCmd<ValueType>(); }
+
+  void Init(GLuint _sync,
+            GLbitfield _flags,
+            GLuint _timeout_0,
+            GLuint _timeout_1) {
+    SetHeader();
+    sync = _sync;
+    flags = _flags;
+    timeout_0 = _timeout_0;
+    timeout_1 = _timeout_1;
+  }
+
+  void* Set(void* cmd,
+            GLuint _sync,
+            GLbitfield _flags,
+            GLuint _timeout_0,
+            GLuint _timeout_1) {
+    static_cast<ValueType*>(cmd)->Init(_sync, _flags, _timeout_0, _timeout_1);
+    return NextCmdAddress<ValueType>(cmd);
+  }
+
+  gpu::CommandHeader header;
+  uint32_t sync;
+  uint32_t flags;
+  uint32_t timeout_0;
+  uint32_t timeout_1;
+};
+
+static_assert(sizeof(WaitSync) == 20, "size of WaitSync should be 20");
+static_assert(offsetof(WaitSync, header) == 0,
+              "offset of WaitSync header should be 0");
+static_assert(offsetof(WaitSync, sync) == 4,
+              "offset of WaitSync sync should be 4");
+static_assert(offsetof(WaitSync, flags) == 8,
+              "offset of WaitSync flags should be 8");
+static_assert(offsetof(WaitSync, timeout_0) == 12,
+              "offset of WaitSync timeout_0 should be 12");
+static_assert(offsetof(WaitSync, timeout_1) == 16,
+              "offset of WaitSync timeout_1 should be 16");
+
 struct BlitFramebufferCHROMIUM {
   typedef BlitFramebufferCHROMIUM ValueType;
   static const CommandId kCmdId = kBlitFramebufferCHROMIUM;
   static const cmd::ArgFlags kArgFlags = cmd::kFixed;
   static const uint8 cmd_flags = CMD_FLAG_SET_TRACE_LEVEL(1);
 
   static uint32_t ComputeSize() {
     return static_cast<uint32_t>(sizeof(ValueType));  // NOLINT
   }
 
@@ skipping 2888 matching lines @@
 
   gpu::CommandHeader header;
 };
 
 static_assert(sizeof(BlendBarrierKHR) == 4,
               "size of BlendBarrierKHR should be 4");
 static_assert(offsetof(BlendBarrierKHR, header) == 0,
               "offset of BlendBarrierKHR header should be 0");
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_FORMAT_AUTOGEN_H_