Add a "Max. MSAA samples" entry to chrome://gpu.

gpu/config/gpu_info_unittest.cc

 // Copyright (c) 2012 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.
 
 #include "gpu/config/gpu_info.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace gpu {
 
 // Test that an empty GPUInfo has valid members
 TEST(GPUInfoBasicTest, EmptyGPUInfo) {
   GPUInfo gpu_info;
   EXPECT_EQ(gpu_info.initialization_time.ToInternalValue(), 0);
   EXPECT_EQ(gpu_info.gpu.vendor_id, 0u);
   EXPECT_EQ(gpu_info.gpu.device_id, 0u);
   EXPECT_EQ(gpu_info.secondary_gpus.size(), 0u);
   EXPECT_EQ(gpu_info.driver_vendor, "");
   EXPECT_EQ(gpu_info.driver_version, "");
   EXPECT_EQ(gpu_info.driver_date, "");
   EXPECT_EQ(gpu_info.pixel_shader_version, "");
   EXPECT_EQ(gpu_info.vertex_shader_version, "");
+  EXPECT_EQ(gpu_info.max_msaa_samples, "");
   EXPECT_EQ(gpu_info.gl_version, "");
   EXPECT_EQ(gpu_info.gl_vendor, "");
   EXPECT_EQ(gpu_info.gl_renderer, "");
   EXPECT_EQ(gpu_info.gl_extensions, "");
   EXPECT_EQ(gpu_info.gl_ws_vendor, "");
   EXPECT_EQ(gpu_info.gl_ws_version, "");
   EXPECT_EQ(gpu_info.gl_ws_extensions, "");
   EXPECT_EQ(gpu_info.can_lose_context, false);
   EXPECT_EQ(gpu_info.basic_info_state, kCollectInfoNone);
   EXPECT_EQ(gpu_info.context_info_state, kCollectInfoNone);
 #if defined(OS_WIN)
   EXPECT_EQ(gpu_info.dx_diagnostics_info_state, kCollectInfoNone);
 #endif
   EXPECT_EQ(gpu_info.video_encode_accelerator_supported_profiles.size(), 0u);
 }
 
 }  // namespace gpu