Fixed problem with clicking on app launcher item

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/ash_constants.h"
 #include "ash/ash_switches.h"
@@ skipping 527 matching lines @@
 }
 
 View* LauncherView::GetFocusTraversableParentView() {
   return this;
 }
 
 void LauncherView::CreateDragIconProxy(
     const gfx::Point& location_in_screen_coordinates,
     const gfx::ImageSkia& icon,
     views::View* replaced_view,
+    const gfx::Vector2d& cursor_offset_from_center,
     float scale_factor) {
   drag_replaced_view_ = replaced_view;
   drag_image_.reset(new ash::internal::DragImageView(
       drag_replaced_view_->GetWidget()->GetNativeWindow()->GetRootWindow()));
   drag_image_->SetImage(icon);
   gfx::Size size = drag_image_->GetPreferredSize();
   size.set_width(size.width() * scale_factor);
   size.set_height(size.height() * scale_factor);
-  drag_image_offset_ = gfx::Vector2d(size.width() / 2, size.height() / 2);
+  drag_image_offset_ = gfx::Vector2d(size.width() / 2, size.height() / 2) +
+                       cursor_offset_from_center;
   gfx::Rect drag_image_bounds(
       GetPositionInScreen(location_in_screen_coordinates,
                           drag_replaced_view_) - drag_image_offset_, size);
   drag_image_->SetBoundsInScreen(drag_image_bounds);
   drag_image_->SetWidgetVisible(true);
 }
 
 void LauncherView::UpdateDragIconProxy(
     const gfx::Point& location_in_screen_coordinates) {
   drag_image_->SetScreenPosition(
@@ skipping 1076 matching lines @@
 bool LauncherView::ShouldShowTooltipForView(const views::View* view) const {
   if (view == GetAppListButtonView() &&
       Shell::GetInstance()->GetAppListWindow())
     return false;
   const LauncherItem* item = LauncherItemForView(view);
   return (!item || delegate_->ShouldShowTooltip(*item));
 }
 
 }  // namespace internal
 }  // namespace ash