Update from https://crrev.com/312600

gpu/command_buffer/service/gles2_cmd_decoder_unittest_3_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!
 
 // It is included by gles2_cmd_decoder_unittest_3.cc
 #ifndef GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_UNITTEST_3_AUTOGEN_H_
 #define GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_UNITTEST_3_AUTOGEN_H_
 
+TEST_P(GLES2DecoderTest3, ViewportValidArgs) {
+  EXPECT_CALL(*gl_, Viewport(1, 2, 3, 4));
+  SpecializedSetup<cmds::Viewport, 0>(true);
+  cmds::Viewport cmd;
+  cmd.Init(1, 2, 3, 4);
+  EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+}
+
+TEST_P(GLES2DecoderTest3, ViewportInvalidArgs2_0) {
+  EXPECT_CALL(*gl_, Viewport(_, _, _, _)).Times(0);
+  SpecializedSetup<cmds::Viewport, 0>(false);
+  cmds::Viewport cmd;
+  cmd.Init(1, 2, -1, 4);
+  EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
+  EXPECT_EQ(GL_INVALID_VALUE, GetGLError());
+}
+
+TEST_P(GLES2DecoderTest3, ViewportInvalidArgs3_0) {
+  EXPECT_CALL(*gl_, Viewport(_, _, _, _)).Times(0);
+  SpecializedSetup<cmds::Viewport, 0>(false);
+  cmds::Viewport cmd;
+  cmd.Init(1, 2, 3, -1);
+  EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
+  EXPECT_EQ(GL_INVALID_VALUE, GetGLError());
+}
 // TODO(gman): TexStorage2DEXT
 // TODO(gman): GenQueriesEXTImmediate
 // TODO(gman): DeleteQueriesEXTImmediate
 // TODO(gman): BeginQueryEXT
 
 TEST_P(GLES2DecoderTest3, BeginTransformFeedbackValidArgs) {
   EXPECT_CALL(*gl_, BeginTransformFeedback(GL_POINTS));
   SpecializedSetup<cmds::BeginTransformFeedback, 0>(true);
   cmds::BeginTransformFeedback cmd;
   cmd.Init(GL_POINTS);
@@ skipping 98 matching lines @@
 // TODO(gman): InsertSyncPointCHROMIUM
 
 // TODO(gman): WaitSyncPointCHROMIUM
 
 // TODO(gman): DrawBuffersEXTImmediate
 // TODO(gman): DiscardBackbufferCHROMIUM
 
 // TODO(gman): ScheduleOverlayPlaneCHROMIUM
 // TODO(gman): SwapInterval
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_UNITTEST_3_AUTOGEN_H_