Replace views::Event with ui::Event.

ash/wm/maximize_bubble_controller.cc

Index: ash/wm/maximize_bubble_controller.cc
===================================================================
--- ash/wm/maximize_bubble_controller.cc	(revision 151055)
+++ ash/wm/maximize_bubble_controller.cc	(working copy)
@@ -292,7 +292,7 @@
 
   // Overridden from ButtonListener.
   virtual void ButtonPressed(views::Button* sender,
-                             const views::Event& event) OVERRIDE;
+                             const ui::Event& event) OVERRIDE;
   // Called from BubbleDialogButton.
   void ButtonHovered(BubbleDialogButton* sender);
 
@@ -557,7 +557,7 @@
 
 // Overridden from ButtonListener.
 void BubbleContentsButtonRow::ButtonPressed(views::Button* sender,
-                                            const views::Event& event) {
+                                            const ui::Event& event) {
   // While shutting down, the connection to the owner might already be broken.
   if (!bubble_->controller())
     return;