Polish VK show/hide animation

chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc

Index: chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc
diff --git a/chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc b/chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc
index 8ed8785e7f9fc226b5017de5c78bc444572aa999..b9ed8b8df6c1cbd79308afd74abcc44f319f5634 100644
--- a/chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc
+++ b/chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc
@@ -39,7 +39,7 @@ namespace {
 const char* kVirtualKeyboardExtensionID = "mppnpdlheglhdfmldimlhpnegondlapf";
 
 // The virtual keyboard show/hide animation duration.
-const int kAnimationDurationMs = 1000;
+const int kAnimationDurationMs = 100;
 
 Context::Type TextInputTypeToGeneratedInputTypeEnum(ui::TextInputType type) {
   switch (type) {
@@ -174,6 +174,7 @@ void AshKeyboardControllerProxy::ShowKeyboardContainer(
     settings.SetTransitionDuration(
         base::TimeDelta::FromMilliseconds(kAnimationDurationMs));
     container->SetTransform(gfx::Transform());
+    container->layer()->SetOpacity(1.0);
   }
 
   // TODO(bshe): Add animation observer and do the workspace resizing after
@@ -201,6 +202,7 @@ void AshKeyboardControllerProxy::HideKeyboardContainer(
   gfx::Transform transform;
   transform.Translate(0, GetKeyboardWindow()->bounds().height());
   container->SetTransform(transform);
+  container->layer()->SetOpacity(0.0);
   KeyboardControllerProxy::HideKeyboardContainer(container);
 }