Polish launcher tooltip visibility.

Add ShelfLayoutManager::Observer for two cases:
- AutoHide: catches the auto hiding status to close the tooltip property
- FullScreen: catches the shelf visibility changes to close it too

Check the visibility of Shelf itself in case of tooltip showing.  Then the toolip
won't show if the shelf is hidden.

R=derat@chromium.org,davemoore@chromium.org
BUG=133551
TEST=manually done on lumpy, made sure aura_shell_unittests passed

Review URL: https://chromiumcodereview.appspot.com/10700030

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@144930 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 4 insertions, 1 deletions

diff --git a/ash/launcher/launcher_view.h b/ash/launcher/launcher_view.h
index 1db7a6b..1c61fca 100644
--- a/ash/launcher/launcher_view.h
+++ b/ash/launcher/launcher_view.h
@@ -41,6 +41,7 @@ namespace internal {
 
 class LauncherButton;
 class LauncherTooltipManager;
+class ShelfLayoutManager;
 
 class ASH_EXPORT LauncherView : public views::View,
                                 public LauncherModelObserver,
@@ -50,7 +51,9 @@ class ASH_EXPORT LauncherView : public views::View,
                                 public views::FocusTraversable,
                                 public views::BoundsAnimatorObserver {
  public:
-  LauncherView(LauncherModel* model, LauncherDelegate* delegate);
+  LauncherView(LauncherModel* model,
+               LauncherDelegate* delegate,
+               ShelfLayoutManager* shelf_layout_manager);
   virtual ~LauncherView();
 
   LauncherTooltipManager* tooltip_manager() { return tooltip_.get(); }