Ash: Inline InitKeyboard, and make the caller of it call CreateKeyboard.

ash/shell.cc

Index: ash/shell.cc
diff --git a/ash/shell.cc b/ash/shell.cc
index 193274ebc6e91b25d84f62eab6593c070b188724..403796e0ed5871d9f28909811a8de2143ec18833 100644
--- a/ash/shell.cc
+++ b/ash/shell.cc
@@ -353,7 +353,22 @@ void Shell::OnRootWindowAdded(aura::Window* root_window) {
 }
 
 void Shell::CreateKeyboard() {
-  InitKeyboard();
+  if (keyboard::IsKeyboardEnabled()) {
+    if (keyboard::KeyboardController::GetInstance()) {
+      RootWindowControllerList controllers = GetAllRootWindowControllers();
+      for (RootWindowControllerList::iterator iter = controllers.begin();
+           iter != controllers.end(); ++iter) {
+        (*iter)->DeactivateKeyboard(
+            keyboard::KeyboardController::GetInstance());
+      }
+    }
+    keyboard::KeyboardController::ResetInstance(
+        new keyboard::KeyboardController(shell_delegate_->CreateKeyboardUI(),
+                                         virtual_keyboard_controller_.get()));
+    for (auto& observer : shell_observers_)
+      observer.OnKeyboardControllerCreated();
+  }
+
   GetPrimaryRootWindowController()->ActivateKeyboard(
       keyboard::KeyboardController::GetInstance());
 }