Disables tooltips if we can't create the tooltip window. I still don't

views/widget/aero_tooltip_manager.cc

 // Copyright (c) 2011 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 "views/widget/aero_tooltip_manager.h"
 
 #include <windows.h>
 #include <commctrl.h>
 #include <shlobj.h>
 
@@ skipping 54 matching lines @@
     // Hide the tooltip and cancel any timers.
     ::SendMessage(tooltip_hwnd_, TTM_POP, 0, 0);
     ::SendMessage(tooltip_hwnd_, TTM_TRACKACTIVATE, false, (LPARAM)&toolinfo_);
     return;
   }
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // AeroTooltipManager, private:
 
-void AeroTooltipManager::Init() {
-  // Create the tooltip control.
-  tooltip_hwnd_ = CreateWindowEx(
-      WS_EX_TRANSPARENT | l10n_util::GetExtendedTooltipStyles(),
-      TOOLTIPS_CLASS, NULL, TTS_NOPREFIX, 0, 0, 0, 0,
-      GetParent(), NULL, NULL, NULL);
-  ui::CheckWindowCreated(tooltip_hwnd_);
-
-  l10n_util::AdjustUIFontForWindow(tooltip_hwnd_);
-
-  // Add one tool that is used for all tooltips.
-  toolinfo_.cbSize = sizeof(toolinfo_);
-
-  // We use tracking tooltips on Vista to allow us to manually control the
-  // visibility of the tooltip.
-  toolinfo_.uFlags = TTF_TRANSPARENT | TTF_IDISHWND | TTF_TRACK | TTF_ABSOLUTE;
-  toolinfo_.hwnd = GetParent();
-  toolinfo_.uId = (UINT_PTR)GetParent();
-
-  // Setting this tells windows to call GetParent() back (using a WM_NOTIFY
-  // message) for the actual tooltip contents.
-  toolinfo_.lpszText = LPSTR_TEXTCALLBACK;
-  SetRectEmpty(&toolinfo_.rect);
-  ::SendMessage(tooltip_hwnd_, TTM_ADDTOOL, 0, (LPARAM)&toolinfo_);
-}
-
 void AeroTooltipManager::OnTimer() {
   initial_timer_ = NULL;
 
   POINT pt = last_mouse_pos_.ToPOINT();
   ::ClientToScreen(GetParent(), &pt);
 
   // Set the position and visibility.
   if (!tooltip_showing_) {
     ::SendMessage(tooltip_hwnd_, TTM_POPUP, 0, 0);
     ::SendMessage(tooltip_hwnd_, TTM_TRACKPOSITION, 0, MAKELPARAM(pt.x, pt.y));
@@ skipping 16 matching lines @@
 void AeroTooltipManager::InitialTimer::Disown() {
   manager_ = NULL;
 }
 
 void AeroTooltipManager::InitialTimer::Execute() {
   if (manager_)
     manager_->OnTimer();
 }
 
 }  // namespace views