events: Change gesture-event handler in EventHandler to not return any values.

ui/views/color_chooser/color_chooser_view.cc

Index: ui/views/color_chooser/color_chooser_view.cc
diff --git a/ui/views/color_chooser/color_chooser_view.cc b/ui/views/color_chooser/color_chooser_view.cc
index fb23fce9fd322d64991c57b31c978c914a1a8c20..99ae5eef384df6e1f398f9a0d40a4c8db580a8b5 100644
--- a/ui/views/color_chooser/color_chooser_view.cc
+++ b/ui/views/color_chooser/color_chooser_view.cc
@@ -73,14 +73,13 @@ class LocatedEventHandlerView : public views::View {
     return true;
   }
 
-  virtual ui::EventResult OnGestureEvent(ui::GestureEvent* event) OVERRIDE {
+  virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE {
     if (event->type() == ui::ET_GESTURE_TAP ||
         event->type() == ui::ET_GESTURE_TAP_DOWN ||
         event->IsScrollGestureEvent()) {
       ProcessEventAtLocation(event->location());
-      return ui::ER_CONSUMED;
+      event->SetHandled();
     }
-    return ui::ER_UNHANDLED;
   }
 
   DISALLOW_COPY_AND_ASSIGN(LocatedEventHandlerView);