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

ash/launcher/launcher_tooltip_manager_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 "ash/launcher/launcher_tooltip_manager.h"
 
 #include "ash/root_window_controller.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/shelf_layout_manager.h"
@@ skipping 166 matching lines @@
   EXPECT_EQ(ui::ER_UNHANDLED,
             event_handler->OnTouchEvent(&touch_event));
   EXPECT_TRUE(TooltipIsVisible());
 
   // Should hide for gesture events.
   ui::GestureEvent gesture_event(
       ui::ET_GESTURE_BEGIN, 0, 0, ui::EF_NONE,
       base::TimeDelta::FromMilliseconds(base::Time::Now().ToDoubleT() * 1000),
       ui::GestureEventDetails(ui::ET_GESTURE_BEGIN, 0.0f, 0.0f), 0);
   SetEventTarget(tooltip_widget->GetNativeWindow(), &gesture_event);
-  EXPECT_EQ(ui::ER_UNHANDLED,
-            event_handler->OnGestureEvent(&gesture_event));
+  event_handler->OnGestureEvent(&gesture_event);
+  EXPECT_FALSE(gesture_event.handled());
   RunAllPendingInMessageLoop();
   EXPECT_FALSE(TooltipIsVisible());
 }
 
 TEST_F(LauncherTooltipManagerTest, HideForMouseEvent) {
   ShowImmediately();
   ASSERT_TRUE(TooltipIsVisible());
 
   aura::RootWindow* root_window = Shell::GetInstance()->GetPrimaryRootWindow();
   ui::EventHandler* event_handler = GetEventHandler();
@@ skipping 14 matching lines @@
   // Should hide if the mouse is out of the tooltip.
   test_api.set_location(tooltip_rect.origin() + gfx::Vector2d(-1, -1));
   EXPECT_EQ(ui::ER_UNHANDLED,
             event_handler->OnMouseEvent(&mouse_event));
   RunAllPendingInMessageLoop();
   EXPECT_FALSE(TooltipIsVisible());
 }
 
 }  // namespace test
 }  // namespace ash