Implementing FlushMappedBufferRange in GPU command buffer.

gpu/command_buffer/common/gles2_cmd_format_autogen.h

Index: gpu/command_buffer/common/gles2_cmd_format_autogen.h
diff --git a/gpu/command_buffer/common/gles2_cmd_format_autogen.h b/gpu/command_buffer/common/gles2_cmd_format_autogen.h
index 3a8ba35913f781030ad6ed9a85476e6bed78c936..70b45bad40b068fd363cfeb543df5aa4f962b0bc 100644
--- a/gpu/command_buffer/common/gles2_cmd_format_autogen.h
+++ b/gpu/command_buffer/common/gles2_cmd_format_autogen.h
@@ -11991,6 +11991,47 @@ static_assert(offsetof(UnmapBuffer, header) == 0,
 static_assert(offsetof(UnmapBuffer, target) == 4,
               "offset of UnmapBuffer target should be 4");
 
+struct FlushMappedBufferRange {
+  typedef FlushMappedBufferRange ValueType;
+  static const CommandId kCmdId = kFlushMappedBufferRange;
+  static const cmd::ArgFlags kArgFlags = cmd::kFixed;
+  static const uint8_t cmd_flags = CMD_FLAG_SET_TRACE_LEVEL(1);
+
+  static uint32_t ComputeSize() {
+    return static_cast<uint32_t>(sizeof(ValueType));  // NOLINT
+  }
+
+  void SetHeader() { header.SetCmd<ValueType>(); }
+
+  void Init(GLenum _target, GLintptr _offset, GLsizeiptr _size) {
+    SetHeader();
+    target = _target;
+    offset = _offset;
+    size = _size;
+  }
+
+  void* Set(void* cmd, GLenum _target, GLintptr _offset, GLsizeiptr _size) {
+    static_cast<ValueType*>(cmd)->Init(_target, _offset, _size);
+    return NextCmdAddress<ValueType>(cmd);
+  }
+
+  gpu::CommandHeader header;
+  uint32_t target;
+  int32_t offset;
+  int32_t size;
+};
+
+static_assert(sizeof(FlushMappedBufferRange) == 16,
+              "size of FlushMappedBufferRange should be 16");
+static_assert(offsetof(FlushMappedBufferRange, header) == 0,
+              "offset of FlushMappedBufferRange header should be 0");
+static_assert(offsetof(FlushMappedBufferRange, target) == 4,
+              "offset of FlushMappedBufferRange target should be 4");
+static_assert(offsetof(FlushMappedBufferRange, offset) == 8,
+              "offset of FlushMappedBufferRange offset should be 8");
+static_assert(offsetof(FlushMappedBufferRange, size) == 12,
+              "offset of FlushMappedBufferRange size should be 12");
+
 struct ResizeCHROMIUM {
   typedef ResizeCHROMIUM ValueType;
   static const CommandId kCmdId = kResizeCHROMIUM;