Support comma separated hardware keyboard layout.

chrome/browser/chromeos/input_method/input_method_delegate_impl.h

Index: chrome/browser/chromeos/input_method/input_method_delegate_impl.h
diff --git a/chrome/browser/chromeos/input_method/input_method_delegate_impl.h b/chrome/browser/chromeos/input_method/input_method_delegate_impl.h
index 4d1920a5a82e846f1a69545a207f2cf0dedd9a46..04381801606e95ef21a4471c601eff6106d5e806 100644
--- a/chrome/browser/chromeos/input_method/input_method_delegate_impl.h
+++ b/chrome/browser/chromeos/input_method/input_method_delegate_impl.h
@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_DELEGATE_IMPL_H_
 
 #include <string>
+#include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
@@ -21,7 +22,8 @@ class InputMethodDelegateImpl : public InputMethodDelegate {
   InputMethodDelegateImpl();
 
   // InputMethodDelegate implementation.
-  virtual std::string GetHardwareKeyboardLayout() const OVERRIDE;
+  virtual void GetHardwareKeyboardLayout(
+      std::vector<std::string>* out) const OVERRIDE;
   virtual base::string16 GetLocalizedString(int resource_id) const OVERRIDE;
   virtual base::string16 GetDisplayLanguageName(
       const std::string& language_code) const OVERRIDE;