Fix bug 62037: Task manager tooltips appear behind task manager if 'Always on Top' is checked.

ui/views/widget/tooltip_manager_win.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 "ui/views/widget/tooltip_manager_win.h"
 
 #include <windowsx.h>
 
 #include <limits>
 
@@ skipping 72 matching lines @@
   if (tooltip_hwnd_)
     DestroyWindow(tooltip_hwnd_);
   if (keyboard_tooltip_hwnd_)
     DestroyWindow(keyboard_tooltip_hwnd_);
 }
 
 bool TooltipManagerWin::Init() {
   DCHECK(!tooltip_hwnd_);
   // Create the tooltip control.
   tooltip_hwnd_ = CreateWindowEx(
-      WS_EX_TRANSPARENT | l10n_util::GetExtendedTooltipStyles(),
+      WS_EX_TRANSPARENT | WS_EX_TOPMOST | l10n_util::GetExtendedTooltipStyles(),
       TOOLTIPS_CLASS, NULL, TTS_NOPREFIX, 0, 0, 0, 0,
       GetParent(), NULL, NULL, NULL);
   if (!tooltip_hwnd_)
     return false;
 
   l10n_util::AdjustUIFontForWindow(tooltip_hwnd_);
 
   // This effectively turns off clipping of tooltips. We need this otherwise
   // multi-line text (\r\n) won't work right. The size doesn't really matter
   // (just as long as its bigger than the monitor's width) as we clip to the
@@ skipping 222 matching lines @@
     tooltip_text_.clear();
   }
   HideKeyboardTooltip();
   string16 tooltip_text;
   if (!focused_view->GetTooltipText(gfx::Point(), &tooltip_text))
     return;
   gfx::Rect focused_bounds = focused_view->bounds();
   gfx::Point screen_point;
   focused_view->ConvertPointToScreen(focused_view, &screen_point);
   keyboard_tooltip_hwnd_ = CreateWindowEx(
-      WS_EX_TRANSPARENT | l10n_util::GetExtendedTooltipStyles(),
+      WS_EX_TRANSPARENT | WS_EX_TOPMOST | l10n_util::GetExtendedTooltipStyles(),
       TOOLTIPS_CLASS, NULL, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL);
   if (!keyboard_tooltip_hwnd_)
     return;
 
   SendMessage(keyboard_tooltip_hwnd_, TTM_SETMAXTIPWIDTH, 0,
               std::numeric_limits<int16>::max());
   int tooltip_width;
   int line_count;
   TrimTooltipToFit(&tooltip_text, &tooltip_width, &line_count,
                    screen_point.x(), screen_point.y());
@@ skipping 35 matching lines @@
     keyboard_tooltip_hwnd_ = NULL;
   }
 }
 
 void TooltipManagerWin::DestroyKeyboardTooltipWindow(HWND window_to_destroy) {
   if (keyboard_tooltip_hwnd_ == window_to_destroy)
     HideKeyboardTooltip();
 }
 
 }  // namespace views