Use libcros to convert input method ID to keyboard overlay ID.

chrome/browser/chromeos/cros/input_method_library.h

Index: chrome/browser/chromeos/cros/input_method_library.h
diff --git a/chrome/browser/chromeos/cros/input_method_library.h b/chrome/browser/chromeos/cros/input_method_library.h
index 7f55eea2609aadfbbecb6e767b3b844f48252f6d..724e7ddbd123a81a417beec7dd3344bdbcc84bd3 100644
--- a/chrome/browser/chromeos/cros/input_method_library.h
+++ b/chrome/browser/chromeos/cros/input_method_library.h
@@ -101,6 +101,11 @@ class InputMethodLibrary {
                             const char* config_name,
                             const ImeConfigValue& value) = 0;
 
+  // Returns the keyboard overlay ID corresponding to |input_method_id|.
+  // Returns an empty string if there is no corresponding keyboard overlay ID.
+  virtual std::string GetKeyboardOverlayId(
+      const std::string& input_method_id) = 0;

[satorux1, 2011/01/05 03:42:29]

You can make it a const function as this function does not change any state.

[mazda, 2011/01/05 11:29:44]

Since EnsureLoadedAndStarted, which is used for the implementation, is
non-const, it is difficult to change this function to const function.
Do you have any ideas?

[satorux1, 2011/01/06 04:39:19]

Then, it's fine to be non-const. Sorry about the bad suggestion.

+
   // Sets the IME state to enabled, and launches its processes if needed.
   virtual void StartInputMethodProcesses() = 0;