Fix animation distance.

ui/keyboard/keyboard_controller.cc

Index: ui/keyboard/keyboard_controller.cc
diff --git a/ui/keyboard/keyboard_controller.cc b/ui/keyboard/keyboard_controller.cc
index 7359cba70f39984a8ed73829e6e3fc504dfc166b..90bddb154dd670828de29d22038c42449711d6cb 100644
--- a/ui/keyboard/keyboard_controller.cc
+++ b/ui/keyboard/keyboard_controller.cc
@@ -370,7 +370,7 @@ void KeyboardController::HideKeyboard(HideReason reason) {
   settings.SetTransitionDuration(
       base::TimeDelta::FromMilliseconds(kHideAnimationDurationMs));
   gfx::Transform transform;
-  transform.Translate(0, proxy_->GetKeyboardWindow()->bounds().height());
+  transform.Translate(0, kAnimationDistance);
   container_->SetTransform(transform);
   container_->layer()->SetOpacity(kAnimationStartOrAfterHideOpacity);
 }
@@ -523,7 +523,7 @@ void KeyboardController::ShowKeyboardInternal() {
   // are at begin states for animation.
   if (!container_animator->is_animating()) {
     gfx::Transform transform;
-    transform.Translate(0, proxy_->GetKeyboardWindow()->bounds().height());
+    transform.Translate(0, kAnimationDistance);
     container_->SetTransform(transform);
     container_->layer()->SetOpacity(kAnimationStartOrAfterHideOpacity);
   }