Linux: Support the --class argument (Reland)

chrome/browser/shell_integration_linux_unittest.cc

Index: chrome/browser/shell_integration_linux_unittest.cc
diff --git a/chrome/browser/shell_integration_linux_unittest.cc b/chrome/browser/shell_integration_linux_unittest.cc
index d6a7120a60cf04f6d0c3313ef64be998757e6d7b..abff7f51c94b057c8865a2b4ae595f5587f82fd6 100644
--- a/chrome/browser/shell_integration_linux_unittest.cc
+++ b/chrome/browser/shell_integration_linux_unittest.cc
@@ -654,4 +654,20 @@ TEST(ShellIntegrationTest, GetDirectoryFileContents) {
   }
 }
 
+TEST(ShellIntegrationTest, WmClass) {
+  base::CommandLine command_line((base::FilePath()));
+  EXPECT_EQ("foo", internal::GetProgramClassName(command_line, "foo.desktop"));
+  EXPECT_EQ("Foo", internal::GetProgramClassClass(command_line, "foo.desktop"));
+
+  command_line.AppendSwitchASCII("class", "baR");
+  EXPECT_EQ("foo", internal::GetProgramClassName(command_line, "foo.desktop"));
+  EXPECT_EQ("baR", internal::GetProgramClassClass(command_line, "foo.desktop"));
+
+  command_line = base::CommandLine(base::FilePath());
+  command_line.AppendSwitchASCII("user-data-dir", "/tmp/baz");
+  EXPECT_EQ("foo (/tmp/baz)",
+            internal::GetProgramClassName(command_line, "foo.desktop"));
+  EXPECT_EQ("Foo", internal::GetProgramClassClass(command_line, "foo.desktop"));
+}
+
 }  // namespace shell_integration_linux