Add LanguageconfigView::IsKeyboardLayout()

TEST=wrote unit tests
BUG=none

Review URL: http://codereview.chromium.org/1519024

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@43804 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 14 insertions, 0 deletions

diff --git a/chrome/browser/chromeos/options/language_config_view.cc b/chrome/browser/chromeos/options/language_config_view.cc
index 6f72f8a..66fd7c7 100644
--- a/chrome/browser/chromeos/options/language_config_view.cc
+++ b/chrome/browser/chromeos/options/language_config_view.cc
@@ -683,4 +683,10 @@ std::string LanguageConfigView::NormalizeLanguageCode(
   return language_code;
 }
 
+bool LanguageConfigView::IsKeyboardLayout(
+    const std::string& input_method_id) {
+  const bool case_insensitive = false;
+  return StartsWithASCII(input_method_id, "xkb:", case_insensitive);
+}
+
 }  // namespace chromeos
diff --git a/chrome/browser/chromeos/options/language_config_view.h b/chrome/browser/chromeos/options/language_config_view.h
index 0dd64d2..1ef971c 100644
--- a/chrome/browser/chromeos/options/language_config_view.h
+++ b/chrome/browser/chromeos/options/language_config_view.h
@@ -90,6 +90,9 @@ class LanguageConfigView : public TableModel,
   static std::string NormalizeLanguageCode(
       const std::string& language_code);
 
+  // Returns true if the given input method id is for a keyboard layout.
+  static bool IsKeyboardLayout(const std::string& input_method_id);
+
  private:
   // Initializes the input method config view.
   void InitInputMethodConfigViewMap();
diff --git a/chrome/browser/chromeos/options/language_config_view_test.cc b/chrome/browser/chromeos/options/language_config_view_test.cc
index 7ee0946..2d254cb 100644
--- a/chrome/browser/chromeos/options/language_config_view_test.cc
+++ b/chrome/browser/chromeos/options/language_config_view_test.cc
@@ -27,4 +27,9 @@ TEST(LanguageConfigViewTest, NormalizeLanguageCode) {
             LanguageConfigView::NormalizeLanguageCode("zh_CN"));
 }
 
+TEST(LanguageConfigViewTest, IsKeyboardLayout) {
+  EXPECT_TRUE(LanguageConfigView::IsKeyboardLayout("xkb:us::eng"));
+  EXPECT_FALSE(LanguageConfigView::IsKeyboardLayout("anthy"));
+}
+
 }  // namespace chromeos