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

ui/base/events/event_dispatcher_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/base/events/event_dispatcher.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace ui {
 
@@ skipping 82 matching lines @@
   virtual EventResult OnScrollEvent(ScrollEvent* event) OVERRIDE {
     ReceivedEvent(event);
     return event_result_;
   }
 
   virtual EventResult OnTouchEvent(TouchEvent* event) OVERRIDE {
     ReceivedEvent(event);
     return event_result_;
   }
 
-  virtual EventResult OnGestureEvent(GestureEvent* event) OVERRIDE {
+  virtual void OnGestureEvent(GestureEvent* event) OVERRIDE {
     ReceivedEvent(event);
-    return event_result_;
+    if (event_result_ & ui::ER_CONSUMED)
+      event->StopPropagation();
+    if (event_result_ & ui::ER_HANDLED)
+      event->SetHandled();
   }
 
   int id_;
   EventResult event_result_;
   bool expect_pre_target_;
   bool expect_post_target_;
   bool received_pre_target_;
 
   DISALLOW_COPY_AND_ASSIGN(TestEventHandler);
 };
@@ skipping 240 matching lines @@
   MouseEvent mouse(ui::ET_MOUSE_MOVED, gfx::Point(3, 4), gfx::Point(3, 4), 0);
   dispatcher.ProcessEvent(&target, &mouse);
   EXPECT_FALSE(target.valid());
   EXPECT_TRUE(mouse.stopped_propagation());
   EXPECT_EQ(2U, target.handler_list().size());
   EXPECT_EQ(1, target.handler_list()[0]);
   EXPECT_EQ(2, target.handler_list()[1]);
 }
 
 }  // namespace ui