Drag and drop between app list and launcher - First patch

ui/app_list/views/app_list_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 "ui/app_list/views/app_list_view.h"
 
 #include "base/string_util.h"
 #include "ui/app_list/app_list_constants.h"
 #include "ui/app_list/app_list_model.h"
 #include "ui/app_list/app_list_view_delegate.h"
@@ skipping 110 matching lines @@
   GetBubbleFrameView()->bubble_border()->set_arrow(arrow);
   SizeToContents();  // Recalcuates with new border.
   GetBubbleFrameView()->SchedulePaint();
 }
 
 void AppListView::SetAnchorPoint(const gfx::Point& anchor_point) {
   set_anchor_rect(gfx::Rect(anchor_point, gfx::Size()));
   SizeToContents();  // Repositions view relative to the anchor.
 }
 
+void AppListView::SetDragAndDropHostOfCurrentAppList(
+    app_list::ApplicationDragAndDropHost* drag_and_drop_host) {
+  CHECK(app_list_main_view_);
+  app_list_main_view_->SetDragAndDropHostOfCurrentAppList(drag_and_drop_host);
+}
+
 void AppListView::ShowWhenReady() {
   app_list_main_view_->ShowAppListWhenReady();
 }
 
 void AppListView::Close() {
   app_list_main_view_->Close();
-
+  app_list_main_view_ = NULL;

[koz (OOO until 15th September), 2013/05/08 02:00:39]

I don't think we want to set this to NULL because on Windows we don't create the
view each time we display the app list, rather we hold on to the first view and
show/hide it as needed.

[Mr4D (OOO till 08-26), 2013/05/08 02:53:35]

Done.

   if (delegate_)
     delegate_->Dismiss();
   else
     GetWidget()->Close();
 }
 
 void AppListView::UpdateBounds() {
   SizeToContents();
 }
 
@@ skipping 90 matching lines @@
 
 void AppListView::OnSigninSuccess() {
   OnSigninStatusChanged();
 }
 
 SigninDelegate* AppListView::GetSigninDelegate() {
   return delegate_ ? delegate_->GetSigninDelegate() : NULL;
 }
 
 }  // namespace app_list