mus: Rename .*PointerWatcher.* to .*PointerDownWatcher.*.

ash/shelf/shelf_tooltip_manager.cc

Index: ash/shelf/shelf_tooltip_manager.cc
diff --git a/ash/shelf/shelf_tooltip_manager.cc b/ash/shelf/shelf_tooltip_manager.cc
index 35a83a23d6808631583798d291725a3777f2df40..b97747511b3020a87babe05667ca2d7416401f4a 100644
--- a/ash/shelf/shelf_tooltip_manager.cc
+++ b/ash/shelf/shelf_tooltip_manager.cc
@@ -103,7 +103,7 @@ ShelfTooltipManager::ShelfTooltipManager(ShelfView* shelf_view)
 ShelfTooltipManager::~ShelfTooltipManager() {
   WillDeleteShelfLayoutManager();
 
-  Shell::GetInstance()->RemovePointerWatcher(this);
+  Shell::GetInstance()->RemovePointerDownWatcher(this);
 
   if (root_window_) {
     root_window_->RemoveObserver(this);
@@ -120,7 +120,7 @@ void ShelfTooltipManager::Init() {
   root_window_->AddPreTargetHandler(this);
   root_window_->AddObserver(this);
 
-  Shell::GetInstance()->AddPointerWatcher(this);
+  Shell::GetInstance()->AddPointerDownWatcher(this);
 }
 
 void ShelfTooltipManager::Close() {
@@ -188,7 +188,7 @@ void ShelfTooltipManager::OnTouchPressed(const ui::TouchEvent& event,
 }
 
 void ShelfTooltipManager::OnEvent(ui::Event* event) {
-  // Mouse and touch press events are handled via views::PointerWatcher.
+  // Mouse and touch press events are handled via views::PointerDownWatcher.
   if (event->type() == ui::ET_MOUSE_PRESSED ||
       event->type() == ui::ET_TOUCH_PRESSED) {
     return;