Parse GL_VERSION incorrectly when version string is without release_number

ui/gl/gl_version_info_unittest.cc

+// Copyright 2015 The Chromium Authors. All rights reserved.

[Zhenyao Mo, 2016/06/20 16:20:15]

nit: 2016

[xinghua.cao, 2016/06/21 10:06:31]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/gl/gl_version_info.h"
+
+namespace gl {
+
+class GLVersionInfoTest : public testing::Test {

[Zhenyao Mo, 2016/06/20 16:20:15]

You don't have to declare this class if it's doing nothing. Below you can just
use TEST instead of TEST_F.

[xinghua.cao, 2016/06/21 10:06:31]

Done.

+
+};
+
+TEST_F(GLVersionInfoTest, MajorMinorVersionTest) {
+  const char* version_str[] = {"4.3 (Core Profile) Mesa 11.2.0",
+                       "4.5.0 NVIDIA 364.19",

[Zhenyao Mo, 2016/06/20 16:20:15]

nit: 4 space only indent.

[xinghua.cao, 2016/06/21 10:06:31]

Done.

+                       "OpenGL ES 2.0 (ANGLE 2.1.0.cd1b12260360)",
+                       "2.1 INTEL-10.6.33"};
+  const char* renderer_str[] = {NULL, NULL, NULL, NULL};
+  const char* extensions_str[] = {"extensions", "extensions",
+                                  "extensions", "extensions"};
+  unsigned expected_major_minor[] = {4, 3, 4, 5, 2, 0, 2, 1};

[Zhenyao Mo, 2016/06/20 16:20:15]

Maybe just split into expected_major and expected_minor?

[xinghua.cao, 2016/06/21 10:06:31]

Done.

+  for (unsigned i = 0; i < arraysize(version_str); i++) {
+    struct GLVersionInfo* version_info =

[Zhenyao Mo, 2016/06/20 16:20:15]

use scoped_ptr

[xinghua.cao, 2016/06/21 10:06:31]

I am not sure where "scoped_ptr" is declared and defined, where is the header 
file to be referred. Zhenyao, is it OK to use std::unique_ptr like feaure_info.h
file?

+        new GLVersionInfo(version_str[i], renderer_str[i], extensions_str[i]);
+    unsigned major, minor;
+    bool is_es, is_es2, is_es3;
+    version_info->ParseVersionString(version_str[i], &major, &minor,
+                                     &is_es, &is_es2, &is_es3);
+    EXPECT_EQ(major, expected_major_minor[2 * i]);
+    EXPECT_EQ(minor, expected_major_minor[2 * i + 1]);
+    delete version_info;
+    version_info = NULL;
+  }
+}
+
+}