Decouple input_method from BrowserThread (and content/).

chrome/browser/chromeos/input_method/mock_xkeyboard.cc

Index: chrome/browser/chromeos/input_method/mock_xkeyboard.cc
diff --git a/chrome/browser/chromeos/input_method/mock_xkeyboard.cc b/chrome/browser/chromeos/input_method/mock_xkeyboard.cc
index 6c5d59f00dcd733b841df15f30d44fe89920c1aa..78a8c63fa15efc2fd7c1b1a9828437b86486a51e 100644
--- a/chrome/browser/chromeos/input_method/mock_xkeyboard.cc
+++ b/chrome/browser/chromeos/input_method/mock_xkeyboard.cc
@@ -63,5 +63,15 @@ void MockXKeyboard::GetLockedModifiers(bool* out_caps_lock_enabled,
   *out_num_lock_enabled = num_lock_is_enabled_;
 }
 
+bool MockXKeyboard::SetAutoRepeatEnabled(bool enabled) {
+  auto_repeat_enabled_ = enabled;
+  return true;
+}
+
+bool MockXKeyboard::SetAutoRepeatRate(const AutoRepeatRate& rate) {
+  auto_repeat_rate_ = rate;
+  return true;
+}
+
 }  // namespace input_method
 }  // namespace chromeos