WIP - allow vector icons to specify motion.

chrome/browser/ui/views/toolbar/app_menu_button.h

Index: chrome/browser/ui/views/toolbar/app_menu_button.h
diff --git a/chrome/browser/ui/views/toolbar/app_menu_button.h b/chrome/browser/ui/views/toolbar/app_menu_button.h
index 96290b40b659500fc84272b286ff4ab28b5704b1..da0dd4297a820894c3a9e191e3f4d70b3fd11a85 100644
--- a/chrome/browser/ui/views/toolbar/app_menu_button.h
+++ b/chrome/browser/ui/views/toolbar/app_menu_button.h
@@ -9,6 +9,8 @@
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
+#include "base/time/time.h"
+#include "base/timer/timer.h"
 #include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
 #include "chrome/browser/ui/toolbar/app_menu_icon_controller.h"
 #include "ui/views/controls/button/menu_button.h"
@@ -23,9 +25,12 @@ class LabelButtonBorder;
 class MenuListener;
 }
 
-class AppMenuAnimation;
 class ToolbarView;
 
+namespace internal {
+class VectorIconAnimator;
+}
+
 class AppMenuButton : public views::MenuButton, public TabStripModelObserver {
  public:
   explicit AppMenuButton(ToolbarView* toolbar_view);
@@ -73,14 +78,9 @@ class AppMenuButton : public views::MenuButton, public TabStripModelObserver {
   void SetTrailingMargin(int margin);
 
   // Animates the icon if possible. The icon will not animate if the severity
-  // level is none, |animation_| is nullptr or |should_use_new_icon_| is false.
+  // level is none, |animator_| is nullptr or |should_use_new_icon_| is false.
   void AnimateIconIfPossible();
 
-  // Methods called by AppMenuAnimation when the animation has started/ended.
-  // The layer is managed inside these methods.
-  void AppMenuAnimationStarted();
-  void AppMenuAnimationEnded();
-
   // Opens the app menu immediately during a drag-and-drop operation.
   // Used only in testing.
   static bool g_open_app_immediately_for_testing;
@@ -117,7 +117,7 @@ class AppMenuButton : public views::MenuButton, public TabStripModelObserver {
   std::unique_ptr<AppMenu> menu_;
 
   // Used for animating and drawing the app menu icon.
-  std::unique_ptr<AppMenuAnimation> animation_;
+  std::unique_ptr<internal::VectorIconAnimator> animator_;
 
   // True if the app menu should use the new animated icon.
   bool should_use_new_icon_;