Fix animation distance.

BUG=355572

Review URL: https://codereview.chromium.org/544173006

Cr-Commit-Position: refs/heads/master@{#295075}

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);
   }

ui/keyboard/keyboard_controller.h

@@ -31,6 +31,9 @@ class WindowBoundsChangeObserver;
 class KeyboardControllerObserver;
 class KeyboardControllerProxy;
 
+// Animation distance.
+const int kAnimationDistance = 30;
+
 // Provides control of the virtual keyboard, including providing a container
 // and controlling visibility.
 class KEYBOARD_EXPORT KeyboardController : public ui::InputMethodObserver,

ui/keyboard/keyboard_controller_unittest.cc

@@ -520,7 +520,7 @@ TEST_F(KeyboardControllerAnimationTest, ContainerAnimation) {
   EXPECT_TRUE(keyboard_window()->IsVisible());
   float show_start_opacity = layer->opacity();
   gfx::Transform transform;
-  transform.Translate(0, keyboard_window()->bounds().height());
+  transform.Translate(0, kAnimationDistance);
   EXPECT_EQ(transform, layer->transform());
   EXPECT_EQ(gfx::Rect(), notified_bounds());