ozone: Rename XKeyboard to KeyboardController & use fake under ozone

ash/system/chromeos/tray_caps_lock.cc

Index: ash/system/chromeos/tray_caps_lock.cc
diff --git a/ash/system/chromeos/tray_caps_lock.cc b/ash/system/chromeos/tray_caps_lock.cc
index 163634f6ef976d203bb3552c9bf67e9d6cd0d4c3..0bb837c9d1aaf9cf48eb26aea06f436e0bec625e 100644
--- a/ash/system/chromeos/tray_caps_lock.cc
+++ b/ash/system/chromeos/tray_caps_lock.cc
@@ -11,7 +11,7 @@
 #include "ash/system/tray/system_tray_notifier.h"
 #include "ash/system/tray/tray_constants.h"
 #include "chromeos/ime/input_method_manager.h"
-#include "chromeos/ime/xkeyboard.h"
+#include "chromeos/ime/keyboard_controller.h"
 #include "grit/ash_resources.h"
 #include "grit/ash_strings.h"
 #include "ui/accessibility/ax_view_state.h"
@@ -30,8 +30,9 @@ namespace {
 bool CapsLockIsEnabled() {
   chromeos::input_method::InputMethodManager* ime =
       chromeos::input_method::InputMethodManager::Get();
-  return (ime && ime->GetXKeyboard()) ? ime->GetXKeyboard()->CapsLockIsEnabled()
-                                      : false;
+  return (ime && ime->GetKeyboardController())
+             ? ime->GetKeyboardController()->CapsLockIsEnabled()
+             : false;
 }
 
 }
@@ -109,8 +110,9 @@ class CapsLockDefaultView : public ActionableView {
 
   // Overridden from ActionableView:
   virtual bool PerformAction(const ui::Event& event) OVERRIDE {
-    chromeos::input_method::XKeyboard* xkeyboard =
-        chromeos::input_method::InputMethodManager::Get()->GetXKeyboard();
+    chromeos::input_method::KeyboardController* xkeyboard =
+        chromeos::input_method::InputMethodManager::Get()
+            ->GetKeyboardController();
     Shell::GetInstance()->metrics()->RecordUserMetricsAction(
         xkeyboard->CapsLockIsEnabled() ?
         ash::UMA_STATUS_AREA_CAPS_LOCK_DISABLED_BY_CLICK :