Add GetInputMethodDescriptorFromXkbId function.

chrome/browser/chromeos/input_method/input_method_util_unittest.cc

 // Copyright (c) 2011 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 "chrome/browser/chromeos/input_method/input_method_util.h"
 
 #include <string>
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
@@ skipping 130 matching lines @@
   const InputMethodDescriptor* descriptor =
       GetInputMethodDescriptorFromId("pinyin");
   ASSERT_TRUE(NULL != descriptor);  // ASSERT_NE doesn't compile.
   EXPECT_EQ("pinyin", descriptor->id());
   EXPECT_EQ("us", descriptor->keyboard_layout());
   // This used to be "zh" but now we have "zh-CN" in ibus_input_methods.h,
   // hence this should be zh-CN now.
   EXPECT_EQ("zh-CN", descriptor->language_code());
 }
 
+TEST_F(InputMethodUtilTest, GetInputMethodDescriptorFromXkbId) {
+  EXPECT_EQ(NULL, GetInputMethodDescriptorFromXkbId("non_existent"));
+
+  const InputMethodDescriptor* descriptor =
+      GetInputMethodDescriptorFromXkbId("us(dvorak)");
+  ASSERT_TRUE(NULL != descriptor);  // ASSERT_NE doesn't compile.
+  EXPECT_EQ("xkb:us:dvorak:eng", descriptor->id());
+  EXPECT_EQ("us(dvorak)", descriptor->keyboard_layout());
+  EXPECT_EQ("eng", descriptor->language_code());
+}
+
 TEST_F(InputMethodUtilTest, GetLanguageNativeDisplayNameFromCode) {
   EXPECT_EQ(UTF8ToUTF16("suomi"), GetLanguageNativeDisplayNameFromCode("fi"));
 }
 
 TEST_F(InputMethodUtilTest, SortLanguageCodesByNames) {
   std::vector<std::string> language_codes;
   // Check if this function can handle an empty list.
   SortLanguageCodesByNames(&language_codes);
 
   language_codes.push_back("ja");
@@ skipping 151 matching lines @@
   std::vector<std::string> language_codes;
   GetLanguageCodesFromInputMethodIds(input_method_ids, &language_codes);
   ASSERT_EQ(3U, language_codes.size());
   EXPECT_EQ("en-US", language_codes[0]);
   EXPECT_EQ("ja", language_codes[1]);
   EXPECT_EQ("fr", language_codes[2]);
 }
 
 }  // namespace input_method
 }  // namespace chromeos