Add EventFilter for LauncherTooltip (2nd try).

ash/launcher/launcher_view.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_view.h"
 
 #include <algorithm>
 
 #include "ash/launcher/app_list_button.h"
 #include "ash/launcher/launcher_button.h"
@@ skipping 265 matching lines @@
       drag_offset_(0),
       start_drag_index_(-1),
       context_menu_id_(0),
       alignment_(SHELF_ALIGNMENT_BOTTOM),
       leading_inset_(kDefaultLeadingInset) {
   DCHECK(model_);
   bounds_animator_.reset(new views::BoundsAnimator(this));
   bounds_animator_->AddObserver(this);
   set_context_menu_controller(this);
   focus_search_.reset(new LauncherFocusSearch(view_model_.get()));
-  tooltip_.reset(new LauncherTooltipManager(alignment_, shelf_layout_manager));
+  tooltip_.reset(new LauncherTooltipManager(
+      alignment_, shelf_layout_manager, this));
 }
 
 LauncherView::~LauncherView() {
   bounds_animator_->RemoveObserver(this);
   model_->RemoveObserver(this);
 }
 
 void LauncherView::Init() {
   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
   model_->AddObserver(this);
@@ skipping 510 matching lines @@
                     OnLauncherIconPositionsChanged());
 
   if (IsShowingOverflowBubble())
     overflow_bubble_->Hide();
 }
 
 views::FocusTraversable* LauncherView::GetPaneFocusTraversable() {
   return this;
 }
 
-void LauncherView::OnMouseMoved(const views::MouseEvent& event) {
-  if (ShouldHideTooltip(event.location()) && tooltip_->IsVisible())
-    tooltip_->Close();
-}
-
-void LauncherView::OnMouseExited(const views::MouseEvent& event) {
-  // Mouse exit events are fired for entering to a launcher button from
-  // the launcher view, so it checks the location by ShouldHideTooltip().
-  gfx::Point point = event.location();
-  views::View::ConvertPointToView(parent(), this, &point);
-  if (ShouldHideTooltip(point) && tooltip_->IsVisible())
-    tooltip_->Close();
-}
-
 void LauncherView::LauncherItemAdded(int model_index) {
   model_index = CancelDrag(model_index);
   views::View* view = CreateViewForItem(model_->items()[model_index]);
   AddChildView(view);
   // Hide the view, it'll be made visible when the animation is done. Using
   // opacity 0 here to avoid messing with CalculateIdealBounds which touches
   // the view's visibility.
   view->layer()->SetOpacity(0);
   view_model_->Add(view, model_index);
 
@@ skipping 249 matching lines @@
   FOR_EACH_OBSERVER(LauncherIconObserver, observers_,
                     OnLauncherIconPositionsChanged());
   PreferredSizeChanged();
 }
 
 void LauncherView::OnBoundsAnimatorDone(views::BoundsAnimator* animator) {
 }
 
 }  // namespace internal
 }  // namespace ash